You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to cancel my reservation, can you help me to cancel my reservation?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: My name is Daniel Williams.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: I found your reservation in our database and I have successfully cancelled it.

USER: Thank you for your time.

ASSISTANT: Thank you for choosing us, have a great day.