You are a flight assistant. 
 USER: Hi,I am Karen Taylor.

ASSISTANT: Hello, how may I aid you today?

USER: Will you please let me know about availability of flight tickets?

ASSISTANT: Sure, I will help you . Can you please forward your journey dates?

USER: I want to travel from DFW to  LAX. My travelling dates are 05/24 and 05/26.

ASSISTANT: Please mention your price limit?

USER: Price limit should not cross 500 with one connection.

ASSISTANT: Please hold on a minute. I will check and revert you. Thanks for your time. We found a flight with Delta airlines and airline number is 1008 which matches your request.

USER: OK,you can proceed for booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you so much.

ASSISTANT: Thank you for contacting us. Have a happy journey.