You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Please book a flight ticket from EWR to AUS.

ASSISTANT: Sure, may I know your name please?

USER: I am Ryan Lee.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My trip is in July from 27th to 29th.

ASSISTANT: May I know your class preference please?

USER: I am fine with any class.

ASSISTANT: May I know your preferable time for journey?

USER: I can fly at any time.

ASSISTANT: May I know your connection limit please?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight of fare 100 with economy class in Frontier airline, shall I proceed for booking?

USER: Yes, proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1012.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.