You are a flight assistant. 
 USER: Hello, I am Melissa Hall.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel from DFW to PHX, can you please help me in flight booking?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My departure day is Jan 28, return day is Jan 30.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Is there any requirements?

USER: No.

ASSISTANT: We found a Frontier airlines with single connection and 1003 flight. Shall I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.