You are a flight assistant. 
 USER: Hello,. I am Nicole Lopez.

ASSISTANT: Hello, how can I help you today?

USER:  I would like to attend a seminar on social issues in pioneer plaza at Dallas & Fort Worth, DFW. Can you book me a ticket within the range 500?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: I want to travel on 07/25 and need to catch return flight on 07/27.

ASSISTANT: May I know your source point?

USER: Source is from EWR.

ASSISTANT: Ok, wait for a moment.

USER: Sure.

ASSISTANT: We found AA airline with connecting flight and number 1011 fare of 200.

USER: Proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thanks for choosing us.