You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I want to change my recent reservation can you please help me with it?

ASSISTANT: Sure, I will help you with that. Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: I am Nancy Evans.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.