You are a flight assistant. 
 USER: Hi, I am Scott Thompson.

ASSISTANT: Hello. How can I aid you?

USER: I want to attend a business meeting at Washington, can you please help me in booking a ticket?

ASSISTANT: Sure, help me with the dates of journey.

USER: My dates of travel is from 06/28 to 06/30.

ASSISTANT: Do you have any specifications?

USER: I need a ticket under price of 200. Connection limit is one.

ASSISTANT: May I know the airport codes?

USER: My airport codes are from TX-AUS to DC-IAD.

ASSISTANT: Sorry, there is no flight found.

USER: Ok, thank you.

ASSISTANT: Thank you for picking us.