You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from IAD to OAK, Can you please help me for booking?

ASSISTANT: Sure, may I know your good name please?

USER: Samuel Turner here.

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

USER: I would like to travel on 02/12 to return on 02/14.

ASSISTANT: May I know your class preference please?

USER: I am comfortable with any class.

ASSISTANT: May I know your preferable time for journey?

USER: I would be return on morning.

ASSISTANT: May I know your connection limit please?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight of fare 300 with economy class in Frontier airline, shall I proceed for booking?

USER: Ok, proceed for booking.

ASSISTANT: Your reservation has bee confirmed with flight number 1012, depart time is at 18:00 hours on Feb, 12 and return time is at 5:00 hours on Feb, 14.

USER: Thanks for your information.

ASSISTANT: You are welcome.