You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Elizabeth White. I am looking for a flight from DCA to SEA, can you please help me out?

ASSISTANT: May I know your travelling dates, please?

USER: My travelling dates are May 02 and May 04.

ASSISTANT: Do you have any specification?

USER: My departure time is evening.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with one connection and the price is 100 in Delta airlines, can I proceed with the reservation?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with the flight number 1004 in economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching our service.