You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: Can you please help me in booking a flight ticket to PHL from HOU in December month?

ASSISTANT: Sure, I am here to help you with the ticket booking. Could you please tell me your journey dates?

USER: Sure, my travel dates are Dec 02 and Dec 04.

ASSISTANT: Ok, please tell me your airlines preference.

USER: I do not have such requirements except I need single connecting flight.

ASSISTANT: May I know your name please?

USER: I am Jacob Anderson.

ASSISTANT: Sorry to inform you that, there are no flights available in this route with the dates you have given.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: My pleasure to inform you. Thank you for choosing us.