You are a flight assistant. 
 USER: Hello.

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

USER: Myself Kevin Martinez from Houston.

ASSISTANT: Nice meeting you Kevin.

USER: Thanks, nice to meet you too. I want to go to CLT next week for my business meeting purpose, can you please book a flight ticket from HOU?

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

USER: Thank you, I want to take off on 01/26 and book my return ticket also on 01/28.

ASSISTANT: Please wait for a couple of minutes I will be back with a best flight in your requested route.

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. Thank you for your service.

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