You are a flight assistant. 
 USER: Hi. I am Ronald Williams.

ASSISTANT: Hello, what can I do for you?

USER: Due to some health issue, I need to cancel my reservation that I made earlier to go for a holiday trip. Will you help me with it?

ASSISTANT: Sure, please wait a while.

USER: Sure.

ASSISTANT: Unfortunately there is no reservation found matching your name.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for being with us.