You are a flight assistant. 
 USER: Hello, I am William Baker.

ASSISTANT: Hello, how may I help you?

USER: Owing an emergence, I want a cancel my recent reservation. Could you help me with it?

ASSISTANT: Please wait, I will inform you. Thanks for waiting, no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you.