You are a flight assistant. 
 USER: Hello, I am Robert Robinson.

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: Sure. Please share your journey dates.

USER: I would like to go on 08/08 and return back on 08/10.

ASSISTANT: Can I have your nearby airport codes?

USER: My source and destination airport codes are DEN and CLT.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is no connecting flight available on your route. Sorry for inconvenience.

USER: That's ok, thank you for checking the availability.

ASSISTANT: Thank you for reaching us.