You are a flight assistant. 
 USER: Hi. I am Emily Evans.

ASSISTANT: Hello, How can I be of your assistance?

USER: I need to book a flight ticket to Detroit to visit rolling pub with my colleagues. Can you help me out in my booking?

ASSISTANT: Sure. May I know your travelling dates?

USER: My journey dates are from 02/04 to 02/06.

ASSISTANT: Can you share your airport codes?

USER: My airport codes are from DEN to DTW.

ASSISTANT: Do you have any preferences?

USER: I can pay up to 500.

ASSISTANT: There is a flight 1011  in UA airline and price 200 with a connection. Can I make reservation?

USER: Proceed with my booking.

ASSISTANT: Your seat has been reserved.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.