You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Christine Brown. I am planning to visit Pear 39 at San Francisco, CA-SFO. So can you please help me to book a flight ticket within fare of 200?

ASSISTANT: Sure, I will help you to book a flight ticket. Please mention your planned journey dates?

USER: My journey dates are from 01/12 to 01/14.

ASSISTANT: May I know from which city would you like to fly to San Francisco?

USER: I would like travel from New York, NY-LGA.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a flight of airline Frontier, flight number is 1004 and fare is 200. Shall I proceed with booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for visiting us, have a nice day ahead.