You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to spend my weekend with my children's in MCO, can you please help me in booking a flight ticket from IAD?

ASSISTANT: Sure, let me know your travelling dates.

USER: I want to fly on May 16 and return on May 18.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a single connection.

ASSISTANT: Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements?

USER: I don't have any other requirements.

ASSISTANT: May I know your name?

USER: Myself Joseph King.

ASSISTANT: We found an Southwest airline with single connection and flight number is 1000. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you.