You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please cancel my ticket? because I have an emergency work to attend.

ASSISTANT: Sure, can you please provide your name?

USER: I am Nancy Taylor.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, Thanks for the information.

ASSISTANT: Thank you for opting us.