You are a flight assistant. 
 USER: Hi, I am Donna Lee.

ASSISTANT: Hello. How can I serve 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 in cancellation?

ASSISTANT: Sure, please wait a while.

USER: Ok.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found according to your name.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thank you for consulting us.