You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I want to book the flight ticket from SFO to PHL. Can you please help me?

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

USER: My travel dates are July 15 and July 17.

ASSISTANT: Can I know your name please?

USER: Christopher Edwards.

ASSISTANT: Do you need any airline preference?

USER: I am comfortable with any airlines.

ASSISTANT: Can I know your timing preference?

USER: I am comfortable with any time.

ASSISTANT: Do you prefer for connection limit?

USER: I need a single connection flight.

ASSISTANT: There is a flight with connection 1 and price 200 with flight number 1015, can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1015.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.