You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I just need your help in booking a plane ticket with 1 connection.

ASSISTANT: Sure, I am here to help you. Please share your airport codes.

USER: Sure, my airport codes are from SEA to HOU.

ASSISTANT: May I know your itinerary dates?

USER: My travelling dates are from 08/17 to 08/19.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: May I know your name for further proceedings?

USER: Sure, my name is Justin Mitchell.

ASSISTANT: Sorry Justin, no flight is available on your planned dates.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.