You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Steven Johnson.

ASSISTANT: How may I help you out?

USER: I am planning for a round trip, could you please help me with booking a flight ticket from SFO to SFO?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I would like to take off on 03/15 and return on 03/17.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Please confirm the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1010.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for choosing us.