You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Please help me out in booking the ticket from IAD to HOU.

ASSISTANT: Sure, can you please share your travel dates?

USER: My trip dates will be Dec 2 to Dec 4.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I want to fly in normal cost airlines.

ASSISTANT: May I know your name to proceed further?

USER: Joshua Harris is my name.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.