You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: I would like to book a flight ticket from PHL to attend a client meeting in LGA, could you please help me in booking?

ASSISTANT: Sure, May I know the travelling dates?

USER: Sure, I need to depart on 10/02 and my return date will be on 10/04.

ASSISTANT: Do you have any connection limit?

USER: I would like to fly with the connecting flight for this time.

ASSISTANT: Is there any other requirements?

USER: I prefer to fly in economy class.

ASSISTANT: May I know your name?

USER: I am Gary Perez.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: That's fine, not an issue. Thank you for your information.

ASSISTANT: Thank you for opting us.