You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am Dorothy Adams.

ASSISTANT: Ok.

USER: I want your help to cancel my ticket due to sudden change of our plan, can you please do it?

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for being on hold. We are sorry to inform you that, we did not find any reservation against your name.

USER: No issue, thank you for your information.

ASSISTANT: Thank you reaching us, have a good day.