You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Due to health issue, I need to cancel my recent reservation. Can you please help in cancelling my ticket?

ASSISTANT: Sure, we are glad to help you. May I know your good name please?

USER: Jack Martinez is my name.

ASSISTANT: There is no reservation found in your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thanks for approaching us, hope to serve you again.