You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me book a flight ticket under the range of 200 from DEN on the name of Stephanie Walker?

ASSISTANT: Sure, may I know your destination airport code please?

USER: My destination is LAX.

ASSISTANT: May I know your travelling dates, please?

USER: They are on 01/09 and 01/11.

ASSISTANT: Do have any other specification?

USER: I need one connection in my journey.

ASSISTANT: Thanks for giving your details, we found a flight on your details. Airline Frontier, flight number: 1027.

USER: Proceed with this booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us.