You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Martinez, want to travel from ATL to DEN. Please help me in booking my ticket.

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: Sure, my preferable travelling dates are from 05/27 to 05/29.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Delta airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: I have successfully booked your ticket with flight-1014, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.