You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Could you help me in booking a flight ticket from DCA to PHL?

ASSISTANT: Can you share me your travelling dates?

USER: I want to fly on May 18, return on May 20.

ASSISTANT: May I know your connection limit?

USER: I want a flight with one connection.

ASSISTANT: On whose name I need to book the ticket?

USER: Thomas Brown.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found a connecting flight of Spirit airlines in the economy class with fare 100, can I proceed for booking?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket is confirmed with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.