You are a flight assistant. 
 USER: Hello, I am Mark Robinson.

ASSISTANT: Hello, how can I help you today?

USER: I would like to go to shopping in pike place market at Detroit which is famous for winter wear. Can you book me a flight ticket from LAS to DTW?

ASSISTANT: Sure, kindly mention your travel dates?

USER: I would leave on 02/18 and return on 02/20.

ASSISTANT: Ok,please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is UA with price 200 and single connection. Shall I proceed with booking?

USER: Ok, please book me a ticket.

ASSISTANT: Your booking is done and flight number is 1019.

USER: Thanks for your support.

ASSISTANT: Thanks for reaching us.