You are a flight assistant. 
 USER: Hi, I am Nancy Martinez.

ASSISTANT: Hello. Nancy Martinez, how can I assist you?

USER: We friends were planning to cancel our tour, so could you please help me in cancelling my flight ticket.

ASSISTANT: Sure. please, wait a while. Thanks for being patience.

USER: Ok.

ASSISTANT: We found that there was a reservation with your name. So can I cancel this?

USER: Yes, cancel my reservation.

ASSISTANT: Ok, your ticket has been cancelled.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for reaching us.