You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Could you please help me in flight ticket booking process from SEA to SFO?

ASSISTANT: Sure, please share me your travel dates.

USER: Thank you for your response, I want to take off on Dec 30 and book my return ticket also on Jan 01.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I will prefer connecting flight.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Sure, my name is Jason Lee.

ASSISTANT: We found a Spirit airline and 1020 is flight number with a fare of 100.

USER: I want to take off in afternoon time so please check with this also.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: JetBlue airline with flight number 1010 and fare is 600. Shall I proceed?

USER: Please confirm this flight ticket for me.

ASSISTANT: Your ticket is confirmed with a business class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.