You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Can you please help me in booking my flight ticket from PHL to OAK?

ASSISTANT: Sure, May I know the journey dates?

USER: My travelling dates are June 12 and June 14.

ASSISTANT: Do you have any connection limit?

USER: I need single connection flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Myself Dennis Parker.

ASSISTANT: Please wait a moment.

USER: Sure.

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

USER: Ok, thanks for checking.

ASSISTANT: Thank you for opting us.