You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I need to cancel my reservation as my plan to go for seminar got cancelled due to some issues. Can you please cancel the reservation that I made with the name of Charles Phillips?

ASSISTANT: Sure, Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Ok, not an issue. Thank you for the response.

ASSISTANT: Thank you for availing us.