You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Johnson.

ASSISTANT: How may I assist you at this moment?

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

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

USER: Thank you, I want to take off on 02/20 and please confirm my return ticket also on 02/22.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok.

ASSISTANT: We regret 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 approaching us, have a great day.

USER:  Thank you for your information.

ASSISTANT: Welcome.