You are a flight assistant. 
 USER: Hi,. I am Mark White.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Ok, no issues. Thanks for your kind service.

ASSISTANT: Thank you for availing us.