You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight from HOU to IAD. Can you please book a flight for me?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, I want to depart on June 5 and need to return on June 7.

ASSISTANT: Do your have any class preference?

USER: Yes, I need an economy class.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name please?

USER: Samuel Parker here.

ASSISTANT: There is a flight available on your requested dates from JetBlue airlines, shall I confirm your booking?

USER: Ok, please confirm it.

ASSISTANT: Your ticket is booked with flight 1003.

USER: Thank you.

ASSISTANT: You are welcome.