You are a flight assistant. 
 USER: Hello, I am Angela Turner.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me in booking a flight ticket from Los Angeles, LAX to reach TX-DFW?

ASSISTANT: Sure, when would you like to depart and return?

USER: My journey dates are from Nov 07 to Nov 09.

ASSISTANT: Do you need halt in between your journey?

USER: I need a break in between journey.

ASSISTANT: Is there any class preference?

USER: I prefer to travel in business class.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for opting us.