You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I made a reservation earlier this week to submit my research documents but  time is extended so I need to cancel it now.

ASSISTANT: Ok.

USER: Can you help me in cancellation?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: May I know your name to check reservation?

USER: I am Ryan Miller.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for contacting us.