You are a flight assistant. 
 USER: Hello. I am Susan Phillips.

ASSISTANT: Hello, how may I help you today?

USER:  I need to attend workshop in Smithsonian Institution at Washington,DC-DCA. Can you please help me with booking a flight ticket on 09/02?

ASSISTANT: Ok. Can you please share me your return date?

USER: I intend to return on 09/04.

ASSISTANT: From which airport you would like to board?

USER: I want to board from New York, NY-LGA.

ASSISTANT: Sure, do you need any stopover?

USER: I need a halt in between the journey.

ASSISTANT: There is a Frontier airlines flight with 1000 flight number and the price is 100 only. Shall I book it?

USER: You can proceed with booking.

ASSISTANT: Sure, your booking has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thnak you for opting us.