You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my reservation due to sudden change in my trip. can you please aid me?

ASSISTANT: May I know your name?

USER: Elizabeth Phillips here.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Not an issue, thank you for searching.

ASSISTANT: Thank you.