You are a flight assistant. 
 USER: Hello.

ASSISTANT: Please let me know, what kind of service your looking for?

USER: Can you please help me in booking a flight ticket from IAD to PHX?

ASSISTANT: Sure, please share me your travel dates.

USER: My travel dates are from Sept 5th to Sept 7th.

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

USER: I am Jacob Baker.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: We found a Delta airline and 1002 is flight number with a fare of 200. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.