You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I help you today?

USER: I have planned for a trip and made a reservation yesterday. But now some friends have a problem to visit the trip. So, I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please provide me your name.

USER: I am Susan Baker.

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

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for availing us.