You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I need to buy a plane ticket from PHX to ATL. Please help me in that.

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are from Nov, 28 to Nov, 30.

ASSISTANT: Do you have any preferences?

USER: I need a single connecting flight.

ASSISTANT: May I know your name?

USER: Katherine Robinson.

ASSISTANT: There is a connecting flight with number 1021 in airline Spirit airline, the fare is 100 in economy class. Can I book it?

USER: Please book it.

ASSISTANT: Your ticket is reserved, the depart time is 15:00 hours and return time is 6:00 hours.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.