You are a flight assistant. 
 USER: Hello.

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

USER: I am looking for a flight from LAX to OAK, can you please help me in booking?

ASSISTANT: Sure, please share me your trip dates.

USER: My travelling dates are Dec 22 and Dec 24.

ASSISTANT: Is there any class preferences for you?

USER: I prefer economy class flight.

ASSISTANT: May I know your airlines specifications?

USER: I am fine with any airline.

ASSISTANT: Please share me your other preferences.

USER: I need a connecting flight.

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

USER: Sure, my name is Jack Lee.

ASSISTANT: We found a Spirit airline and 1018 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.