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

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, I will help you with the change of flight reservation. Thanks for waiting. But I am sorry to say that there is no reservation on your name to change it.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you.