You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to go a round trip in Chicago, can you please help me in booking a flight ticket?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travelling dates are from 12/05 till 12/07.

ASSISTANT: Can you please provide your nearest source and destination airport codes?

USER: It's a round trip so my airport code is ORD.

ASSISTANT: May I know your name, please?

USER: My name is Justin Roberts.

ASSISTANT: Here is a flight with fare 200 in Frontier airlines with connection 1, would you like me to proceed with the booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed with flight number 1014.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us, have a nice day.