You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am planning to book a ticket from IAH to PHL. Can you please help me out?

ASSISTANT: Sure, I am oblige to help you with that. Can you please provide your preferable dates of travelling?

USER: I am planning to travel on Nov 02 and return back on Nov 04.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Any more specifications do you have?

USER: My depart time should be afternoon.

ASSISTANT: May I know your name to book a flight ticket?

USER: My name is Donna Rodriguez.

ASSISTANT: We are apologize that, there are no flights running towards your region with your requested dates of travelling.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for reaching to our services, hope you have a great day.