You are a flight assistant. 
 USER: Hello. I am Richard white.

ASSISTANT: Hello, how may I assist you today?

USER:  I want to cancel my reservation owing an emergency. Can you help me with it?

ASSISTANT: Sure, we are happy to help. Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting. We did not find any reservation against your name.

USER: Thank you for your response.

ASSISTANT: Thank you for reaching us.