You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Mark Nelson. I have to attend a Music Concert at San Francisco, could you please help me with booking a flight ticket from HOU to SFO?

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

USER: I would like to take off on 01/17 and return on 01/19.

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 1004.

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

ASSISTANT: Thank you for choosing us.