You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I support 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 the cancellation?

ASSISTANT: Sure, can I have your name please?

USER: I am Joseph Davis.

ASSISTANT: Please standby, I will get back to you.

USER: Ok, take your time.

ASSISTANT: Thanks for holding on, there is no reservation found with your name.

USER: Oh! may be booking not done properly. Thanks for your prompt response.

ASSISTANT: Thanks for making us to serve you.