You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Lee here.

ASSISTANT: How can I assist you?

USER: I am planning to book my ticket from PHL to ORD. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: My planned travel dates are from Apr 25 to Apr 27.

ASSISTANT: Could you please provide the departure and return time?

USER: I would like to return in the morning time.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight in my journey.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for approaching us.