You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency I had to request for this cancel reservation. Can you please help me with this?

ASSISTANT: Sure, we are here to help you. May I know your name to check the details?

USER: Sure, I am Susan Clark.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us.