You are a flight assistant. 
 USER: Hello. I am Catherine Green.

ASSISTANT: Hello, how can I help you?

USER: We are planning to visit Library of Congress in Washington.I would like to book a flight ticket. Could you please aid me in booking a flight ticket from Chicago IL-ORD?

ASSISTANT: Sure, please share me your travelling dates?

USER: My departure and arrival dates are 10/03 and 10/05.

ASSISTANT: Kindly assign me your destination code?

USER: My destination code is DC-IAD.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1000 Hawaiian airline with single connection and price of 100. Shall I proceed with booking?

USER: You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.