You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to attend music concert at JFK, can you please help me with booking a flight ticket from OAK?

ASSISTANT: Sure, please share me your trip dates.

USER: I would like to take off on July 10 and return on July 12.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class, but I would prefer normal cost airline.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am looking for a connecting flight.

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

USER: My name is David Harris.

ASSISTANT: We found a AA airline and 1006 is flight number with a fare of 200. Shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for opting us.

USER: You are welcome.