You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: As I accidentally booked a flight ticket with wrong dates, can you please assist me in cancelling that ticket.

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Sure, I was glad to have your presence.

ASSISTANT: Please share me your name.

USER: This Is Betty Martinez.

ASSISTANT: Please allow me a moment. Sorry, no reservation found on your name to cancel your reservation.

USER: Ok, no issue.

ASSISTANT: Thank you for choosing us.