You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Catherine Robinson here. I am unhealthy to travel, could you please cancel my reservation?

ASSISTANT: Sure, wait for a minute.

USER: Ok.

ASSISTANT: Sorry Catherine, no reservation found on your name.

USER: That's ok. Thank you for searching.

ASSISTANT: Thank you for contacting  us.