You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Jennifer Green, can you find a flight for me from DEN to IAH?

ASSISTANT: Sure, may I know your travel dates?

USER: Ok, my trip dates are from 12/18 and 12/20.

ASSISTANT: Do you prefer economy or business class?

USER: I am ok with any class.

ASSISTANT: We found a economy flight on your details with airline UA, flight number: 1003. Shall I book this ticket with the fare of 100?

USER: Yes, please.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thank you.