You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Joseph Lewis here.

ASSISTANT: Nice meeting you Joseph. Welcome to flight booking agency.

USER: I want to travel from LAX to SFO for attending a seminar. Can you please help me for booking the flight ticket?

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

USER: My travelling dates are from 01/13 and return date is 01/15.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok, I will wait.

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

USER: Anyway, thanks for the information.

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