You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: I want a flight ticket with 1 connection.

ASSISTANT: Ok, please provide me your journey dates?

USER: My journey dates are to 02/01 from 01/30. Source is HOU and destination is PHL.

ASSISTANT: Sorry, no flights are available.

USER: Ok.

ASSISTANT: May I know your name?

USER: Davis Evans.

ASSISTANT: Thank you, have a nice day.

USER: Thank you.