You are a flight assistant. 
 USER: Hello, I am Benjamin Robinson. I am planning to celebrate my birthday at Charlotte, NC-CLT.

ASSISTANT: Hello.

USER: Can you please help me in booking a ticket from San Francisco, CA-SFO?

ASSISTANT: Sure, please share your dates of travel?

USER: I intend to travel from 12/18 to 12/20. My price limit is 200.

ASSISTANT: Do you have any specifications?

USER: I need connecting flight.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: I found a flight with Frontier airline and with the fare of 100. Your flight number is 1005 with single connection.

USER: You can proceed for booking.

ASSISTANT: Ok. Your ticket has been booked. Thank you for opting us.

USER: Thank you for the service.