You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I address you?

USER: Owing to an emergency, my meeting with client got cancelled, so I want you to cancel my recent reservation.

ASSISTANT: Sure, will you please let me know your name?

USER: Sure,Donna Scott here.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, I regret to inform you that there is no reservation found under your name in our data base.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.