You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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.

USER: Thanks.

ASSISTANT: Can I have your name please to check the status of your reservation?

USER: My name is Amy Collins.

ASSISTANT: Amy Collins, no reservation has been found on your name in our database.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.