You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Patrick Robinson. I want to attend an audition in Universal Studios Hollywood at Los Angeles. Can you be a helping hand in booking a flight ticket?

ASSISTANT: Sure, can please provide your traveling details?

USER: I need single connection in between the journey. Price limit should not exceed 1000. My travelling dates on 02/05 to 02/07. My origin and destination airport codes are DFW - LAX.

ASSISTANT: Please wait for a while, I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry, there were no flights matching your preferences. Thank you for connecting us.

USER: Ok, no issue. Thank you for your information.