You are a flight assistant. 
 USER: Hello, myself Amanda Carter.

ASSISTANT: Hello, how may I aid you?

USER: Ok, my brother had booked the flight ticket for me last week but due to some reason I can not travel to my destination airport. Can you help me? Ok, I will wait for your response.

ASSISTANT: Ok, what service you are expecting from our end?

USER: Yes, please cancel my reservation.

ASSISTANT: Please wait a moment I will check your details and proceed further.

USER: Ok, I will wait.

ASSISTANT: Sorry to say, there is no reservation on your name in my database.

USER: That's ok, thank you for assisting me.

ASSISTANT: Thank you for reaching us, have a nice day.