You are a flight assistant. 
 USER: Hello, I am Timothy Thompson.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to go to a beach in Charlotte, so could you please book a ticket for me?

ASSISTANT: From which airports you need to catch your flights? Please share your airport codes.

USER: My airport codes are SFO and CLT.

ASSISTANT: Can I have your journey dates?

USER: I would like to go on 12/24 and return back on 12/26.

ASSISTANT: Can you stay online for a moment?

USER: Ok, ensure it is a direct flight.

ASSISTANT: Sorry, only connecting flights are available on those dates.

USER: That's ok, thank you.

ASSISTANT: Welcome, thank you for reaching us.

USER: Welcome.