You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please check the availability of flights in between the points ORD and IAD?

ASSISTANT: Ok, please mention the dates of your journey.

USER: I would like to travel on Aug 11 and return on Aug 13.

ASSISTANT: Ok, please can you let me know your specification?

USER: I need a direct flight.

ASSISTANT: Do you have any other intent?

USER: No.

ASSISTANT: Sorry, there is no flight available at your location to book. May I know your name?

USER: Ok. My name is Christine Scott.

ASSISTANT: Thank you for choosing our agency.

USER: Thanks for your assistance.