You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, We are here to help you. May I know your name?

USER: Thank you. My name is Ronald Thompson.

ASSISTANT: Please wait a while.

USER: Sure, I will wait for your response.

ASSISTANT:  Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to cancel  it.

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

ASSISTANT: Thank you for reaching us.