You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER:  I am Margaret Gonzalez. I want to attend a conference at NV-LAS from PA-PHL. Can you book a connecting flight?

ASSISTANT: May I know your trip dates please?

USER: My trip dates are 08/25 and 08/27.

ASSISTANT: Do you need any price limit?

USER:  Make sure price should be 200.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We are glad to inform, there is a flight available with AA airline of flight number 1010 and cost is 100.

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.