You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Lisa Hernandez. I want to book a direct flight ticket to attend conference meeting at New York, NY-JFK. Can you please help me in that?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 10/15 to 10/17.

ASSISTANT: Please provide your specifications.

USER: My price limit is 1000. It's a round trip.

ASSISTANT: Please provide your origin airport code.

USER: It's a round trip to JFK.

ASSISTANT: Frontier airlines with direct flight and price is 100 of 1011 flight. Shall i proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you.