You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Stephen Mitchell here. Can you please help me in booking my flight from PHL to LGA?

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: My travel dates are Oct 30th and Nov 1st.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a direct flight.

ASSISTANT: May I know your departure and arrival time?

USER: I must return in the evening.

ASSISTANT: Do you have any other specifications.

USER: No.

ASSISTANT: Ok, please be on hold.

USER: Ok, sure.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, not a problem. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.