You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please book a flight ticket from DCA to LAX?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Thank you. I have planned my travel dates as May 11 and May 13.

ASSISTANT: Can you please share your connection limit?

USER: I am looking for single connecting flight.

ASSISTANT: May I know you name please?

USER: Sure, myself Joseph Anderson.

ASSISTANT: Do you have any specification?

USER: I would prefer economy class so please make sure that.

ASSISTANT: AA airlines is providing connecting flight for you with the fare of 200 in economy class, shall I proceed with the booking?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1002.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.