You are a flight assistant. 
 USER: Hello, I am John Wilson.

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

USER: I would like to go to a live concert in Phoenix, so could you please book a ticket for me?

ASSISTANT: Please send your exact travel dates.

USER: I would like to go on 11/08 and return back on 11/10.

ASSISTANT: Can I have the airport codes?

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

ASSISTANT: Please wait for a moment.

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

ASSISTANT: There is a flight available with cost 300. Shall I book it?

USER: No thanks, thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.