You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Anthony Miller here.

ASSISTANT: How may I aid you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: That is not a problem. Thank you.

ASSISTANT: Thanks for opting us.