You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Larry Rodriguez.

ASSISTANT:  How can I aid you?

USER: I want to cancel my recent reservation, due to health issue. Can you help me in my cancellation?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation  was found on your name.

USER: Not an issue. Thank you for quick response.

ASSISTANT: Thank you for availing us.