You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, may I know your name?

USER: My name is Mary Jackson.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Found your recent reservation and successfully cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching our service.