You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me with booking a flight ticket from PHL to LAX?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are from Apr 25-27.

ASSISTANT: May I know your connection limit?

USER: I would be comfortable with single stop over.

ASSISTANT: Do you have any other specification that you are looking for?

USER: My depart has to be in afternoon.

ASSISTANT: May I know your name to proceed further?

USER: Edwards Robinson here.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us.