You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I need to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, please mention your name to fetch from our database.

USER: My name is Samuel Evans.

ASSISTANT: Wait for a moment, let me fetch from database.

USER: Sure.

ASSISTANT: We regret to inform you that there is no active reservation found on your name.

USER: Thank you.

ASSISTANT: Thank you for contacting us.