You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I have your name?

USER: I am Alexander Hernandez.

ASSISTANT: How may I help you today?

USER: I got an invitation from my cousin regarding the Verizon Amphi Theater show, which is going to be held at Atlanta,GA - ATL. Can you please aid me for booking a ticket?

ASSISTANT: Sure, I will help you with booking. May I know from where you are flying to Atlanta?

USER: I want to fly from DC - DCA.

ASSISTANT: Do you have any restriction on connection?

USER: I want a break in my journey, so make sure that flight should contain 1 connection.

ASSISTANT: Please share on what dates would you like to travel?

USER: I want to travel on 12/10 and return on 12/12.

ASSISTANT: Please wait for while, I check for the flight.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform that there is no any flight available on your journey data.

USER: OK, no problem. Thanks for the information.

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