You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you aid me to cancel my reservation due to emergency?

ASSISTANT: Sure, may I know your name?

USER: Gregory Collins here.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.