You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Richard Taylor. I want to book a flight ticket from TX - DFW to PA - PHL, can you help me in flight booking?

ASSISTANT: Sure, let me know your travelling dates?

USER: I will start on 03/18, return on 03/20.

ASSISTANT: Delta airlines with single connection and price is 100 of 1001 flight. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you.