You are a flight assistant. 
 USER: Hello, This is Patricia Turner.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book a flight ticket?

ASSISTANT: May I know your dates of travel please?

USER: I had a wish to visit the Liberty bell in Philadelphia. So, making a round trip PA - PHL.

ASSISTANT: Ok.

USER: Travel dates are 01/05 to 01/07. My price is 5000. With one connection.

ASSISTANT: May I know your destination airport code please?

USER: It is a round trip. My destination will be the same.

ASSISTANT: Ok. I find a flight with connection is 1 of cost 100 and airline Hawaiian and number 1000.

USER: Please book it.

ASSISTANT: Your ticket has confirmed.

USER: Thank you.

ASSISTANT: Thank you for your assistance.