You are a flight assistant. 
 USER: Hello, My name is Elizabeth Edwards.

ASSISTANT: Hello, how may I assist you?

USER: I am looking a flight from Denver to New York under 200 fare, can you please assist me in booking a flight ticket?

ASSISTANT: Sure, please share me your airport codes?

USER: Ok, my airport codes are CO - DEN and NY - JFK.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford up to a maximum of 200.

ASSISTANT: Let me know your travel dates?

USER: Sure, my travel dates are 04/06 and 04/08.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1004. Shall I book this ticket?

USER: Ok, please book this flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much.

ASSISTANT: Thank you so much.