You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I guide you for today?

USER: I have booked a ticket to meet my sister but he only came to meet me on her holiday, so find the ticket on Nancy Davis name and cancel the ticket.

ASSISTANT: Yes, It's my duty to assist you about your request.

USER: Thank you for considering it.

ASSISTANT: Sorry Nancy, after checking our listing there is no reservations under your name.

USER: Ok, thank you for your information.

ASSISTANT: My pleasure, thank you for reaching out here.