You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Katherine Taylor.

ASSISTANT: How can I be at your service?

USER: I just want to cancel my recent reservation due to my doctor appointment got cancelled, can you please help me with that?

ASSISTANT: Sure, I am here to assist you. Please hold on for a minute.

USER: Sure.

ASSISTANT: Thanks for holding on, no reservation found with your name to cancel.

USER: Ok, no issues.

ASSISTANT: Thanks for approaching us.

USER: Thanks for your information.