You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Daniel Young.

ASSISTANT: How may I help you Daniel?

USER: I am planning to attend a music event in San Francisco.Can you please book a ticker from ORD to SFO?

ASSISTANT: Sure Daniel, I would like know your travelling dates.

USER: I would like to travel on 02/24 and return on 02/26.

ASSISTANT: Thank you for giving the details Daniel. Please wait for a moment.

USER: Make sure my price limit is 200. Ok.

ASSISTANT: There is a flight with price limit 100, do you want me to go ahead for booking?

USER: Sure, you can proceed the booking.

ASSISTANT: Daniel, your ticket from ORD  to SFO has been booked successfully.

USER: Thank you.

ASSISTANT: You are welcome.