You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Owing to emergency, I need to cancel my recent reservation. Please help me with that.

ASSISTANT: Sure, may I know your name?

USER: My name is Benjamin Moore.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.