You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, I am glad to help you in cancelling your reservation.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for your previous reservation status is whether active or not.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting. Sorry to say, there is no active reservation have been found under your name in our database to cancel it.

USER: That's ok, no problem. Anyway thank you for your information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.