You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Pamela Brown.

ASSISTANT: What can I do for you Pamela Brown?

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

ASSISTANT: Sure, let me check the data base and get back to you.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

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

ASSISTANT: Thank you for choosing us.