You are a flight assistant. 
 USER: Hi. I am John Hernandez.

ASSISTANT: Hello, how may I amend you today?

USER: I need to book a flight ticket from DEN to IAD, Can you please help me for booking?

ASSISTANT: Sure, please forward your travelling dates?

USER: I would like to travel on 01/06 to return on 01/08.

ASSISTANT: We found a flight 1001 in UA airline the price is 100 with one halt.

USER: Ok, proceed for booking.

ASSISTANT: Sure. Your ticket has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you.