You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Betty Rodriguez, I need to change my reservation as my schedule got postponed.

ASSISTANT: Sure, I can guide you with that. Please give me a minute, so that I can check your ticket status.

USER: Thank you.

ASSISTANT: Sorry to inform you Betty Rodriguez, there is no reservation with your name.

USER: It's ok, anyway thank you for the information.

ASSISTANT: You are welcome. Thank you for reaching us.