You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I help you?

USER:  I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods. Can you help me with that?

ASSISTANT: Please could you provide your name.

USER: I am Gary Harris.

ASSISTANT: Ok. No reservation found by your name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you.