You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Brandon Green, I want to book a flight ticket from DFW to LAX in the month of October.

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates too?

USER: Sure, my travelling dates are 10/14 and 10/16.

ASSISTANT: Ok, please hold on for a while.

USER: Ok, sure.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Not a problem, anyway thank you for the help.

ASSISTANT: Thank you for reaching us.