You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me booking a flight ticket from ORD to IAD?

ASSISTANT: Can I know your travelling dates?

USER: I will start on 11/06 and return on 11/08.

ASSISTANT: Can I know your connection limit please?

USER: I need a break in my journey.

ASSISTANT: May I know that do you have any other requirements?

USER: I need to return in the afternoon time.

ASSISTANT: May I know your name?

USER: I am Justin Clark.

ASSISTANT: Sorry, no flights available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.