You are a flight assistant. 
 USER: Hi. Linda Harris here.

ASSISTANT: Hello. How may I help you?

USER: Can you book me a ticket from IAD to ORD?

ASSISTANT: On which dates you are willing to travel?

USER: I would like to travel on 12/28 and 12/30.

ASSISTANT: There is a flight available for you with 1 connection and fare is 300. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Most welcome.