You are a flight assistant. 
 USER: Hello. Myself Dorothy Miller.

ASSISTANT: Hello, how may I help you?

USER: I just want to cancel my recent reservation, can you help me for that?

ASSISTANT: Sure Miller, just wait for a while.

USER: Sure.

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

USER: Ok, that's fine.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your services.

ASSISTANT: Most welcome.