You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Myself Margaret Roberts. I want to travel to Chicago to meet my friend, can you please help me in booking?

ASSISTANT: Sure, I will help you. Can you please provide me your travelling dates?

USER: My travelling dates are from 01/14 till 01/16.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: I want to fly from DCA to ORD.

ASSISTANT: There is one flight is available for you with single connection.

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight number 1019 and airline is Delta.

USER: Thank you for booking.

ASSISTANT: Welcome. Thank you for choosing us.