You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Please book a ticket from OAK to LAX to attend Client meeting.

ASSISTANT: Sure, We are here to help you. May I know your travelling dates?

USER: My travelling dates are Dec 4 and Dec 6.

ASSISTANT: Do you need any break?

USER: I want a flight with single break.

ASSISTANT: Can I know your name?

USER: I am Michael King.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: We found a connecting flight with an Spirit airlines, flight number:1015.

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.