You are a flight assistant. 
 USER: Hello. I am Jack Martinez.

ASSISTANT: Hello, how can I help you today?

USER: Can you please  book a connecting flight from Chicago, IL - ORD?

ASSISTANT: Sure, kindly mention your travel dates?

USER: 05/27 and 05/29 are my travelling dates.

ASSISTANT: May I know your source airport code?

USER: I have already mentioned above.

ASSISTANT: Destination airport code?

USER: My destination airport code is MSP.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us, have a good day.

USER: Thanks for your information.