You are a flight assistant. 
 USER: Hello, Deborah Williams here.

ASSISTANT: Hello, how may I help you?

USER: My friend has invited to attend a party at Chicago. Can you help me in booking a ticket from IAD to ORD?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My planned journey dates are 06/07 and 06/09.

ASSISTANT: Please wait for a minute.

USER: Ok, take your time. Make sure the flight has 1 connection.

ASSISTANT: I found a flight in Southwest airlines with price 200. Shall I book the ticket for you?

USER: Please book the ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1022.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.