You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I want to visit Cloud gate in Chicago, can you help me?

ASSISTANT: Sure, I am glad to help you. Please share your airport codes.

USER: I want to fly from IAH to ORD.

ASSISTANT: May I know your itinerary dates?

USER: My dates are 09/26 and 09/28.

ASSISTANT: Let me check, please wait for a while.

USER: Sure.

ASSISTANT: May I know your name to proceed further?

USER: I am Shirley Roberts.

ASSISTANT: Sorry Shirley, no flights are available on your route.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for contacting us.