You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: I am Katherine Lopez. I am planning to book a ticket to meet my family at EWR. Can you please help me out?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: I would like to travel on 04/02 and return back on 04/04.

ASSISTANT: Ok, may I know the destination airport code please? May I know the source code please?

USER: My source code is PHL.

ASSISTANT: Ok, please wait for a while. Thank you for waiting, there is a flight 1004 in AA airline has the price 200. Can I proceed?

USER: Please book it.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a nice day.