You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kathleen Campbell, want to travel from LAX to PHL. Please help me in booking my ticket.

ASSISTANT: Can you please tell me your trip dates?

USER: Sure, my trip dates are from 02/01 to 02/03.

ASSISTANT: Do you have any other requirements?

USER: I need a single connecting flight and also my return time should be in the morning.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: It's ok, thank you for your help.

ASSISTANT: Most welcome.