You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Nancy Thomas. I want to cancel my flight ticket, due to some problems I am unable to travel those dates so can you please help me with that?

ASSISTANT: I am here to help you about that.

USER: Thank you.

ASSISTANT: Sorry to say this Nancy, there is no active reservations under your name.

USER: Oh! It's ok no problem. Thank you for your service.

ASSISTANT: Most welcome, thank you for reaching out here.