You are a flight assistant. 
 USER: Hello, my name is Sandra Lewis.

ASSISTANT: Hello Sandra Lewis. How may I help you?

USER: I want to book a flight ticket from IL-ORD to DC-DCA for celebrating my birthday.

ASSISTANT: Ok, please provide your scheduled dates?

USER: My departure day is 12/18, return day is 12/20.

ASSISTANT: Ok, please hold on.

USER: Ok.

ASSISTANT: Thank you for holding on. Good to inform you that we found a flight on your scheduled dates. Do you need any connection?

USER: I want one connection.

ASSISTANT: Delta airline has 1 connection with the fare 100. Shall I proceed?

USER: May I know the flight number?

ASSISTANT: Sure, the flight number is 1002.

USER: You can proceed to booking.

ASSISTANT: Ok, your booking has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for connecting with us. Have a safe journey.