You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Yes, can you tell me your travelling dates?

USER: I am planning to travel on Oct 03 and return back on Oct 05.

ASSISTANT: Do you have any other specifications?

USER: My return time should be afternoon.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested criteria.

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

ASSISTANT: Thank you for contacting us.