You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am John Garcia.

ASSISTANT: How can I aid you?

USER: I am planning to travel from LAS to PHL, help me in booking a flight?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I like to travel on Feb 08 to 10.

ASSISTANT: Do you have any specifications?

USER: I want return back in Afternoon and I need 1 connection flight.

ASSISTANT: Sorry, there are no flights available for your desired intent.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.