You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me to book a flight from EWR to PHL?

ASSISTANT: Sure, may I know the travelling dates?

USER: My travel dates are Apr 03 to 05.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Jason Campbell.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.