You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward Moore from Chicago.

ASSISTANT: What service that you are looking from our agency Moore?

USER:  I need your help in booking of a flight ticket from ORD to LAS for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, I am gleeful to help you. Can you please provide your planned dates of travelling?

USER: Thank you, I want to take off on 12/06 and book my return ticket also on 12/08.

ASSISTANT: Ok, please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: Oh! It's ok no problem, I will go with another airline.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you for your help.

ASSISTANT: Welcome.