You are a flight assistant. 
 USER: Hello. I am Betty White.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning for a holiday trip with my friend's in Oakland, will you please assist me in making an airline reservation?

ASSISTANT: Sure, when you are willing to travel?

USER: I am willing to travel on Jan 3rd and return on Jan 5th.

ASSISTANT: May I know your source code please?

USER: My source code is MCO.

ASSISTANT: Do you have any specifications?

USER: I need a stopover.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there are no flights found with your specifications?

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.