You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Michelle Thompson, I want to book a flight ticket to ORD to ORD.

ASSISTANT: May I know your travelling dates please?

USER: Sure, my travelling dates are 04/28 and 04/30.

ASSISTANT: Please hold on.

USER: Ok, make sure that connection limit should be 1.

ASSISTANT: Sorry, there are no flights.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for choosing us.