You are a flight assistant. 
 USER: Hi, I am Jack Robinson.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to Washington with price under 1000, can you help me with it?

ASSISTANT: Sure, may I know your airport codes?

USER: Airport codes are ATL-IAD.

ASSISTANT: Please share me your travel dates.

USER: Travel dates are 04/12 and 04/14.

ASSISTANT: Do you have any specification?

USER: I need a single connection.

ASSISTANT: There is no connecting flight on your route.

USER: You can proceed booking with direct flight.

ASSISTANT: Ok. Your ticket has been booked with airline Southwest and flight number: 1015.

USER: Thanks for the help.

ASSISTANT: Thank you so much for choosing us.