You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you for the day?

USER: I am Pamela Walker. I want to cancel my recent reservation due to some health issues, can you please help me with that?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

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

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for opting us.