You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to reserve my flight ticket from ATL to DEN, can you please help me ?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travelling dates are Feb, 09 and 11.

ASSISTANT: Do you have any other specifications?

USER: Yes, I prefer to economy class with a single connection to travel.

ASSISTANT: May I know your name?

USER: Sure, my name is Rebecca Edwards here.

ASSISTANT: There is a flight on frontier airline, flight number 1009 with the fare of 400. Can I proceed for booking?

USER: Please go ahead.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.