You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Paul Johnson.

ASSISTANT: How may I render you today?

USER: I am planning this month to travel Boston. Can you please help me in booking the ticket from SEA to BOS?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: I will drop-off 02/05 and again I will be return back on 05/07.

ASSISTANT: Ok, please wait a moment while I'll check the flights availability.

USER: Sure.

ASSISTANT: Can you please mention your travel dates clearly?

USER: Sorry I am willing to travel on 02/05 and again I will be return back on 02/07.

ASSISTANT: Fine, please allow me a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

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

ASSISTANT: Thank you for reaching us, have a great day.