You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Jason Walker, I want to book a flight ticket from IL - ORD to CA - LAX to meet my friend in Los Angeles.

ASSISTANT: Sure, when are you willing to travel?

USER: My departure day is 03/25, return day is 03/27.

ASSISTANT: Ok, any other requirements?

USER: I need a direct flight.

ASSISTANT: Ok, please wait or a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for opting us.