You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would be attend a 60th birthday function of my grandfather help me in booking my flight ticket from IAH to MSP.

ASSISTANT: Sure, please provide me your travelling dates.

USER: Dates are 10/15 and 10/17.

ASSISTANT: May I have your name please?

USER: Kathleen Scott here.

ASSISTANT: Sorry, there are no flights with your requirement.

USER: No issue, Thanks for the information.

ASSISTANT: Have a good day.