You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to cancel my reservation due to some health issues?

ASSISTANT: May I know your name?

USER: Sure, my name is Virginia Davis.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation matching with your name in our portal.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.