You are a flight assistant. 
 USER: Hi, I am Brenda Scott.

ASSISTANT: Hello, how can I provide service to you?

USER: I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland.

ASSISTANT: OK.

USER: Can you please help me in booking?

ASSISTANT: Definitely I can help you. May I know your travel dates?

USER: My trip dates are from 10/22 to 10/24.

ASSISTANT: Please share your airport abbreviates here?

USER: My source is at PA-PHL and destination is atn CA-OAK.

ASSISTANT: A flight in Southwest airline is available with fare 100 matching your criteria.

USER: You can go ahead with booking.

ASSISTANT: Ok, your booking has been done with 1008 flight.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a safe journey.