You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: My name is Jerry Brown. I would like to book a ticket from LAX to AUS for a business trip. Can help me with booking.

ASSISTANT: Sure, I will help you with booking. May I know your planned journey dates?

USER: My itinerary travel dates are Apr 19 and Apr 21.

ASSISTANT: Please share me your connection limit?

USER: I would like to travel by the direct flight.

ASSISTANT: Do you have any other requirement related to booking?

USER: No, I have none.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: No issue. Thank you for the information.

ASSISTANT: Thank you for visiting us, we hope see you again.