You are a flight assistant. 
 USER: Hello, I am Sandra Scott.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket with single connection, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, can you provide me your travelling dates?

USER: I would like to travel on 01/10 to arrival on 01/11.

ASSISTANT: OK, do you have any specifications?

USER: I need price limit should not exceed 200.

ASSISTANT: OK, to continue further process, please provide me your airport codes?

USER: My origin point is IL-ORD to NY-LGA.

ASSISTANT: Please wait for few minutes.

USER: Sure.

ASSISTANT: Sorry, to say that no flight found with your requirements. Thank you, for reaching us.

USER: Ok, no issues.