You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please book a flight ticket from ORD to SFO?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My journey dates are Sept 18 and Sept 20.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: May I know your name for further process?

USER: I am Rachel Jones.

ASSISTANT: Here, I found a flight for you with 1 stopover in economy class and it costs you 100. Can I proceed for further?

USER: Go ahead.

ASSISTANT: Your booking is done with flight 1002 in UA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a safe flight.