You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I guide you today?

USER: I am Kevin Thomas. I want to book a flight ticket to Denver as I have planned to visit some historical places. Please help me out.

ASSISTANT: Sure, kindly mention your travel dates?

USER: My travelling dates are from 01/13 to 01/15.

ASSISTANT: Can you please provide me your airport codes?

USER: My Source code is HOU and Dest code is DEN.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100 and single connection. Shall I proceed with booking?

USER: Please go with booking.

ASSISTANT: Your booking is done and flight number is 1006.

USER: Thank you for the reservation.

ASSISTANT: Thanks for reaching us, have  a good day.