You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I just want to cancel my recent reservation, can you help me?

ASSISTANT: Ok, I am glad to help you.

USER: Thank you. I have booked on the name of Donna Wilson.

ASSISTANT: Please wait for a while.

USER: OK.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.