You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I aid you today?

USER: I am Jacob Roberts. Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: We are sorry to inform, there is no reservation found with your given name.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for opting with us.