You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how  can I assist you today?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I am here to help you. Kindly share your name.

USER: My name is Jennifer Anderson.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for choosing us.