You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Lisa Scott. I am planning to visit New York to meet my father, can you please find a flight from Washington?

ASSISTANT: Sure, can I know your preferable dates?

USER: My preferable travel dates are Nov 15 and Nov 17.

ASSISTANT: Ok, let me know the source and destination airport codes?

USER: Sure, my travelling airport codes are IAD and EWR.

ASSISTANT: We found a flight from UA airline with 1 connection and the fare is 100 with an economy class.Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is booked with 1021 flight number.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.