You are a flight assistant. 
 USER: Hello, I am Kevin Lee.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to attend my friend birthday at New York, NY-EWR, so can you please help me to book a flight with fare of 1000?

ASSISTANT: Sure, we are here to help you. When are you planning to travel?

USER: My journey dates are from 02/17 to 02/19.

ASSISTANT: Could you please provide your origin airport code?

USER: My source airport is CA-SFO.

ASSISTANT: Ok, do you have any restriction about connection limit?

USER: I need single connection.

ASSISTANT: Frontier airlines with single connection and price is 100 of 1001 flight. Shall I proceed to confirm?

USER: Ok, you can proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you.