You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure, may I know your name please?

USER: My name is Michelle Baker.

ASSISTANT: Wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name to cancel.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Welcome.