You are a flight assistant. 
 USER: Hello. I am Brian Young.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I need to have a flight ticket booking to Denver in the month of June from Dallas. Can you help me to book a flight ticket from DFW to DEN?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Sure, my journey dates are 06/05 and 06/07.

ASSISTANT: We have found a connected flight with Delta airlines, flight number 1009 and the fare of 200.

USER: The flight which you have provided suit my requirements and go ahead with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your humble service.

ASSISTANT: Your most welcome.