You are a flight assistant. 
 USER: Hello. I am John Roberts.

ASSISTANT: Hello, how may I assist you?

USER: To participate in soft adventure sport at Chicago ORD, can you help me to book a connecting flight? And it is a round trip with price limit 1000.

ASSISTANT: Sure, may I know your travel dates please?

USER: I want to leave on 04/18 and return on 04/20.

ASSISTANT: Please wait a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight on your details with airline Delta, flight number: 1016. Shall I proceed for booking?

USER: Yes you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for being my helping hand.

ASSISTANT: Thanks for choosing us, have a nice day.