You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Elizabeth Anderson. I would like to book a ticket from PHL to IAD.

ASSISTANT: May I know your desired travel dates please?

USER: My desired travel dates are May 27 and May 29.

ASSISTANT: Do you have any specifications?

USER: Yes, I would like to go with a single connection and normal-cost.

ASSISTANT: There is a flight with connection limit 0 and fare 200, shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked, flight number 1005.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.