You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am James Wilson. I am planning a trip to DCA, with my friends. Can you help me in booking the tickets from PHX?

ASSISTANT: May I know your trip dates?

USER: My planning dates are from 06/20 to 06/22.

ASSISTANT: Ok, please wait a minute.

USER: Make sure that, I need a flight with 1 connection.

ASSISTANT: There is no flight with 1 connection.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: Most welcome.