You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I best serve you today?

USER: I need to cancel my recent reservation, can you help me?

ASSISTANT: Can I know your good name to proceed further?

USER: I am Kathleen Taylor.

ASSISTANT:  I am very sorry to inform you that there is no reservation found under your name in our database.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.