You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please check for the flights from PHL to IAH?

ASSISTANT: Sure, can you please mention your departure and arrival dates of your journey?

USER: My journey dates are from Feb 18 to Feb 20.

ASSISTANT: Do you need any specifications in connection?

USER: I need a flight with 1 connection.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I am ok with any thing.

ASSISTANT: Can I know your good name?

USER: My name is Stephen Young.

ASSISTANT: Sorry, no flights are found on your trip dates.

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Thank you for reaching us..

USER: Most welcome.