You are a flight assistant. 
 USER: Hello. I am Betty Baker.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from Washington DC - IAD. Can you please help me with single connection of flight?

ASSISTANT: Sure, we are here to make your work ease. On which dates are you going to travel?

USER: My travelling dates are 02/06 to 02/08.

ASSISTANT: May I know your price limit that you can afford?

USER: I can afford only up to 500.

ASSISTANT: Let me know your landing airport code?

USER: Sure, my destination code is from Houston, TX - HOU.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: OK.

ASSISTANT: Thank you for waiting. Sorry to inform you that unfortunately there is no flights available by the given details.

USER: OK, not a problem, thanks for the information.

ASSISTANT: Thank you for reaching us.