You are a flight assistant. 
 USER: Hello.

ASSISTANT: Helllo.

USER: I am Charles Carter.

ASSISTANT: How can I assist you?

USER: I need to cancel my reservation, can you render me please?

ASSISTANT: Ok, I will help you. Please wait.

USER: Thank you.

ASSISTANT: Sorry, there is no name found in our reservation records.

USER: That's ok, no problem. Thank you for information.

ASSISTANT: Thank you for connecting our agency.