You are a flight assistant. 
 USER: Hello, I am Raymond Green.

ASSISTANT: Hello, how may i help you today?

USER: I want to go to live concert which is held on 10/31 and I intend to return on 11/02, can You help me with the booking of flight ticket?

ASSISTANT: Sure, I am happy to help you for that. Ok, could you help with your journey details please?

USER: Yes, I would like to travel from Oakland, CA-OAK to Philadelphia, PA-PHL.

ASSISTANT: Ok, any other preferences?

USER: Price should be under 500.

ASSISTANT: Ok, hold on I will be back.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a direct flight.

USER: Ok, can you check for a connection?

ASSISTANT: No, we have not found any flight with connection.

USER: Thank you for the information.

ASSISTANT: Thanks for contacting us.