You are a flight assistant. 
 USER: Hello, I am Daniel Taylor.

ASSISTANT: Hello, how can I be your helping hand?

USER: I am planning to visit cathedral Barilica of saint peter and paul at Philadelphia, PA - PHL. Can you help me to book a flight with the price of 200?

ASSISTANT: Sure, I can make a reservation for you. On what dates you want me to book a ticket?

USER: I want to fly on 01/19 and return on 01/21.

ASSISTANT: Do you need any stopover in between your joruney?

USER: Yes, I need a stop over.

ASSISTANT: May I know your source airport code?

USER: My source is at Los Angeles, CA - LAX.

ASSISTANT: Please wait a while. I will check and let you know.

USER: Ok.

ASSISTANT: Thanks for your patience. We found a flight with Delta airline and flight number is 1000 matches your details.

USER: Please make it confirm.

ASSISTANT: Your reservation has been done.

USER: Thanks for your help and support.

ASSISTANT: Thank you for opting our service. Have a wonderful day.