You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: I found your reservation and cancelled it successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.