You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Robert Davis. Can you help me to cancel the recent reservation which I had three hours ago?

ASSISTANT: Sure, I am here to help you.

USER: Ok, thank you.

ASSISTANT: Please give me a moment to check your reservation status.

USER: Ok, please take your own time.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for reaching us.