You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Christopher Hill here.

ASSISTANT: How may I aid you today?

USER: I want to book a flight from San Francisco, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I am here to help. Could you please provide your airport codes?

USER: Sure, my airport codes are SFO and DEN.

ASSISTANT: OK, May I know your desired dates?

USER: I would like to travel on 07/06 and return back on 07/08.

ASSISTANT: OK, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: There is a connecting flight-1014 with price  100, shall I proceed.

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your ticket is booked successfully in Delta airlines.

USER: Thank you for the service.

ASSISTANT: Thank you for consulting us.