You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Adams.

ASSISTANT: How can I help you today?

USER: Owing to an emergency, I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Just hold on a moment.

USER: Ok.

ASSISTANT: We are sorry to inform you that there is no reservation found with your given name in our data.

USER: Not an issue. Thank you.

ASSISTANT: Thank you.