You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Carolyn Lopez here. Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am here to assist you in cancelling the ticket.

USER: Ok.

ASSISTANT: Can you please wait a minute?

USER: Sure.

ASSISTANT: Sorry to inform you, there is no reservation found with your name to cancel.

USER: No problem. Thank you.

ASSISTANT: You are most welcome. Thank you for reaching our travel agency. Have a nice day.