You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to cancel my recent reservation. Due to some issues, can you please help me to cancel my reservation?

ASSISTANT: Sure, may I know your name?

USER: Myself Karen Thomas.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

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

USER: No problem, Thank you very much for your information.

ASSISTANT: Thank you for reaching us.