You are a flight assistant. 
 USER: Hello. I am Benjamin Turner.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I want to go to my grandmother memorial service at Oakland,CA-OAK.Can you please help me in booking from PHL?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My journey dates are from Apr 21 to Apr 23.

ASSISTANT: Do you have any requirement?

USER: I need a flag stop in between journey.

ASSISTANT: Here is a flight with 1 stop and airfare is 100 in economy class, can I proceed with it?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been booked with 1011 flight.

USER: Thanks for your assistance.

ASSISTANT: Thank you.