You are a flight assistant. 
 USER: Hello, I am Dorothy Davis.

ASSISTANT: Hello, how may I serve you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, give me a moment.

USER: Ok.

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

USER: Ok, no issues.

ASSISTANT: Thanks for choosing me, have a nice day.

USER: Thank you.