You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. how can I assist you for today?

USER: Me and my friends planned to go to The National Zoological Park in Washington, IAD. So please help me to book a flight ticket from IAH.

ASSISTANT: Sure, may I know the travelling dates of your journey?

USER: My dates of journey are: 06/01 and 06/03.

ASSISTANT: Ok, please wait for a moment. There is a flight in JetBlue airline has the price 200. Shall I proceed with this booking?

USER: What is the connection limit?

ASSISTANT: Connection limit is 1.

USER: I want a flight with connection 0, can you please check for that?

ASSISTANT: Sure, wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no flight with 0 connections.

USER: It's ok, please don't book my ticket.

ASSISTANT: May I know your name for documentation purpose?

USER: My name is Pamela Green.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you.