You are a flight assistant. 
 USER: Hello. My name is Larry Collins.

ASSISTANT: Hello, how can I best serve you for the day?

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

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found on your given name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for contacting us.