You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation due to abnormal health issues, will you please help me with this?

ASSISTANT: Sure, l will help you.

USER: thanks.

ASSISTANT: Can I know your name please?

USER: Sure, I am Jonathan Thomas.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patient, there is  no active reservation found on your name.

USER: Ok, not a problem. Thank you for checking.

ASSISTANT: Thank you for availing us.