You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to Chicago with price under 1000, Can you help me with it?

ASSISTANT: Sure, may I know your journey dates?

USER: Journey dates are 08/12 to 08/14.

ASSISTANT: Can you please provide me your source and destination airport codes?

USER: Sure, source is LGA and destination is ORD.

ASSISTANT: May I know your name please?

USER: My name is Emma Jackson.

ASSISTANT: May I know your connections limit?

USER: Make sure the connection limit is 1.

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

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there is no connecting flights available.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thank you.