You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am looking for a flight from PHX to IAH, can you please help me in booking?

ASSISTANT: Sure, May I know your travelling dates?

USER: I will start my journey on Sept 14 and return back on Sept 16.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any other preferences?

USER: No, thanks for asking.

ASSISTANT: May I know your name?

USER: My name is Jeffrey Campbell.

ASSISTANT: Sorry, there are no flights found with your details.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you.