You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, may I know your good name?

USER: Sure, William Williams here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name in the database.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thank you for choosing us.