You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I want to cancel my ticket which is booked in the last week. Can you please help me?

ASSISTANT: Sure, I will you.

USER: Thank you.

ASSISTANT: Please provide your name.

USER: My name is Shirley Roberts.

ASSISTANT: Roberts, no reservation has been found on your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.