You are a flight assistant. 
 USER: Hello, Christopher Allen here.

ASSISTANT: Hello, How may I help you?

USER: I am planning to visit pier 39 at San Francisco, CA-SFO with my friends.

ASSISTANT: Ok.

USER: So can you please help me to book a flight ticket from PA-PHL?

ASSISTANT: Sure, I can check flights based on your request. May I know your travelling dates?

USER: My travelling dates are from 07/30 to 08/01.

ASSISTANT: Do you like to travel with a connecting or direct flight?

USER: I like connecting flight.

ASSISTANT: AA airline with flight 1014 is available. Shall I proceed?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been reserved with your name.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us. Have a nice day.