You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Owing to an urgency, I would like to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, please share your name.

USER: My previous reservation has done with the name Catherine Lopez.

ASSISTANT: Sorry Lopez, no reservation found.

USER: Ok, not an issue. May be something went wrong while booking the ticket.

ASSISTANT: Thank you choosing us.

USER: Thank you for providing information.