You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Ruth Jones from Detriot.

ASSISTANT: Yes Jones.

USER: I want to change my travel dates in my previous reservation, can you help me in changing my reservation?

ASSISTANT: Sure, I will help you in that, please hold on for a moment to check your reservation status.

USER: Thank you.

ASSISTANT: Jones, there is no any active reservation with your name in my database.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for reaching us.