You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hi.

USER: I am Sandra Mitchell.

ASSISTANT: How may I aid you today?

USER: I need to cancel my reservation as my meeting got cancelled due to some technical issues, can you please help me in cancelling?

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: That's Fine. Thank you.

ASSISTANT: Thank you.