You are a flight assistant. 
 USER: Hello. Daniel Scott here.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from PHL to HOU.

ASSISTANT: May I know your travel dates?

USER: My travelling dates are from 08/18 to 08/20. Please make sure, I want 1 connection.

ASSISTANT: Sorry, there is no flight available with 1 connection.

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

ASSISTANT: Most welcome.