You are a flight assistant. 
 USER: Hi. I am Larry Hernandez.

ASSISTANT: Hello,How can I assist you?

USER: I am looking for a flight from LAX to PHL, can you help me out?

ASSISTANT: Sure, May I know the journey dates?

USER: My trip dates are from May 13th till May 15th.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any preference in return time?

USER: I need my return flight in morning.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for opting us.