You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Due to some personal problems, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I will help with that cancellation, please wait for a while.

USER: Sure, take your time.

ASSISTANT: May I know your name to check your previous reservation status?

USER: My name is Karen Perez.

ASSISTANT: Sorry, Karen Perez, there is no active reservation found with your name in our record to cancel it.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for contacting us, have a great day.