You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Nicholas Moore.

ASSISTANT: How may I assist you, Nicholas?

USER: I would like to travel Boston this vacation. Can you please help me in booking the ticket from PHX to BOS?

ASSISTANT: Sure, may I know your journey dates please?

USER: I will drop-off 10/06 and again I will be return back on 10/08.

ASSISTANT: Moore, there are no flights available at this moment.

USER: Not a big deal, anyhow thank you very much for your service.

ASSISTANT: Thank you for contacting us.