You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to book a ticket from DCA to DFW to attend seminar, can you help me in booking?

ASSISTANT: Sure, can you please share your travel dates?

USER: I am departing on Apr 26 and return on Apr 28.

ASSISTANT: May I know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I do not have any other specifications.

ASSISTANT: May I know your name to proceed further?

USER: My name is Patricia Collins.

ASSISTANT: There is a flight available with price 100 and the connection is 1 with Delta airline. Would you like me to proceed with the booking?

USER: Please proceed for booking.

ASSISTANT: Your booking is confirmed with 1007 flight number and the departure time is 10:00 hours, return time is 5:00 hours.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.