You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Hall.

ASSISTANT: How can I assist you?

USER: Owing to an emergency, I need to cancel my reservation. Can you please help me out?

ASSISTANT: Yes, I can help you.

USER: Thank you.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for contacting us.