You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: David Williams here, looking for a flight ticket to Boston to visit Faneuil Hall. Can you help me with that?

ASSISTANT: Ok, can I know your travel dates?

USER: Sure, I am planning to go on 09/10 and return back on 09/12.

ASSISTANT: May I know your airport codes?

USER: Sure, it's from SFO to BOS.

ASSISTANT: The flight 1018 of JetBlue airlines is available on your requested dates. Shall I proceed?

USER: Ok, book 1 ticket for me.

ASSISTANT: Sure. Your ticket is booked successfully.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome.