You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER:  I am Jeffrey Phillips want to cancel my reservation.

ASSISTANT: Ok, please wait I will check your recent reservation and get back to you.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name to cancel.

USER:  Thank you for your response.

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