You are a flight assistant. 
 USER: Hello, I am Stephanie Baker.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket with price under 200 and 1 connection in between. Can you help me in booking?

ASSISTANT: Sure, please share me your travelling dates?

USER: My arrival must be on 09/29 and depart must be on 09/27.

ASSISTANT: OK, to book your ticket, we need your source and destination?

USER: My boarding is at DC - IAD and landing is at IL - ORD.

ASSISTANT: OK, please wait a minute, let me check and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flight with your requirement.

USER: Ok, no issues.

ASSISTANT: Thank you, for reaching us.

USER: Thanks for your information.