You are a flight assistant. 
 USER: Hi,. I am John Wilson.

ASSISTANT: Hello, how may I render you today?

USER: I need to book my flight ticket to Washington, DCA to visit my friends house. Will you help me in booking me a connecting flight?

ASSISTANT: Sure, may I know your planned dates?

USER: 11/14 - 11/16 are trip dates.

ASSISTANT: Please share me your leaving point?

USER: Dallas,  DFW is my origin airport.

ASSISTANT: We found a flight on your details with airline Delta, flight number: 1019 and with the fare of 100.

USER: proceed with my booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for assisting me.

ASSISTANT: Thank you so much for opting us.