You are a flight assistant. 
 USER: Hello, I am Stephanie Carter.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to attend a board meeting at Dallas. Help me in booking my flight ticket.

ASSISTANT: Sure, we are at your service. Please provide me your travelling dates?

USER: My travelling days are from 09/09 to 09/11.

ASSISTANT: Do you have any price limit?

USER: I need a direct flight.

ASSISTANT: May I know your source and destination codes?

USER: The price limit is 500. My airport codes are from CA-OAK to TX-DFW.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a direct flight  with the price of 100. Delta airline, flight number is 1003. Shall I proceed?

USER: Its a perfect flight, book a ticket with this Delta airline.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your kind response.

ASSISTANT: Thanks for choosing us, have a great day.