Answers

Step 1:

- You look dazed. Something wrong with the oxygen tank?
- Nope, not so much as an audible echo. Even an x-ray couldn't disturb this little tango. 
- Not another wordage rendition - it's like the time you called your car a Romeo Alpha. 
- You're acting discordant like Charlie. We've always used "tango" to refer to the tank. 
= Delta India Six to Apollo, Delta India Six to Apollo, do you copy my delta. 
- Alpha One Three to Houston, I read you in excellent condition. 
= Delta India Six to Apollo, please dampen the oxygen tango and give it a uniform stir. 
- Roger that, Sierra. I shall not disdain this oddity; this job which even Daedalus would ditch. 
- Hey, we've got a problem here. 
- Whoa! Hey! The tank is emitting an echo. What did you do, pour whiskey into it? 
- Nothin'. I stirred the tank, but there seemed to be a dangerous alpha particle leak. 
- Bravo! Your so-called uniform stir will get you fired before the first day of November. 
= Uh, this is Houston. Uh, wasn't sure if that was a mayday call. Please ditto. 
- Houston, we have a problem.

NATO phonetic alphabet spells out EXTRACTDIDIDADITUSEWABUN. This becomes "extract DI DI DA DIT use Wabun".

Step 2:

- You look dazed. Something wrong with the oxygen tank?
- Nope, not so much as an audible echo. Even an x-ray couldn't disturb this little tango. 
- Not another wordage rendition - it's like the time you called your car a Romeo Alpha. 
- You're acting discordant like Charlie. We've always used "tango" to refer to the tank. 
= Delta India Six to Apollo, Delta India Six to Apollo, do you copy my delta. 
- Alpha One Three to Houston, I read you in excellent condition. 
= Delta India Six to Apollo, please dampen the oxygen tango and give it a uniform stir. 
- Roger that, Sierra. I shall not disdain this oddity; this job which even Daedalus would ditch. 
- Hey, we've got a problem here. 
- Whoa! Hey! The tank is emitting an echo. What did you do, pour whiskey into it? 
- Nothin'. I stirred the tank, but there seemed to be a dangerous alpha particle leak. 
- Bravo! Your so-called uniform stir will get you fired before the first day of November. 
= Uh, this is Houston. Uh, wasn't sure if that was a mayday call. Please ditto. 
- Houston, we have a problem.

Morse code signals give -..-. / .-... / .-.-. / --. / .---. which when looked up against Wabun Code gives MO-O-N-RI-SE.