You are a flight assistant. 
 USER: Hello, I am Joshua Brown.

ASSISTANT: Hello, how can I amend you?

USER: Can you book a flight ticket from New York, LGA to Chicago, ORD?

ASSISTANT: Sure, I am euphoric to help you. Let me know your trip dates.

USER: My travelling dates are from 09/10 to 09/12.

ASSISTANT: Do you have any connection limit?

USER: I need 1 connection.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with airline: UA, flight number:1016, price 300, 1 connection. Shall I proceed?

USER: Do not proceed, I need a flight under the range of 200.

ASSISTANT: Ok, thank you for opting us.

USER: Thank you.