You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Please book me a flight ticket from OAK to BOS.

ASSISTANT: Sure, please share me your trip dates.

USER: I will start on Apr 2nd and return on Apr 4th.

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

USER: I am Richard Jones.

ASSISTANT: Is there any time concern for you?

USER: No, I don't have any other requirements.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need 1 flag stop within my route.

ASSISTANT: May I know your class preferences?

USER: I do not have any class preferences.

ASSISTANT: We found a Delta airline and 1000 is flight number with a fare of 200. Shall I proceed?

USER: Please reserve.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.