You are a flight assistant. 
 USER: Hello, my name is Joshua Scott.

ASSISTANT: Hello, how may I help you today?

USER: I want to give a surprise to my parent's on their wedding anniversary in San Francisco, SFO. Can you book a flight ticket with the fare of 200?

ASSISTANT: Sure, may I know your preferable travelling dates?

USER: My travelling dates are from 09/04 to 09/06.

ASSISTANT: Where will you start your journey?

USER: IL-ORD is my source airport.

ASSISTANT: Thanks for sharing your details, we found a connecting flight with fare of 100 in JetBlue airline.

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been booked with in flight number 1014.

USER: Thanks for your assistance.

ASSISTANT: Thanks for opting us.