You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your support?

USER: I am Debra Anderson. Can you book a flight ticket from Austin, AUS to Los Angeles, LAX?

ASSISTANT: Sure, we are happy to serve you.

USER: Thank you.

ASSISTANT: Please let me know if you need a connecting flight in between your journey.

USER: No, I need a direct flight.

ASSISTANT: What price would you like to put on flight ticket?

USER: I can bare up to 1000.

ASSISTANT: Kindly mention your planned travelling dates to proceed further.

USER: Sure, My travelling dates are from 09/21 to 09/23.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with your essential details.

USER: Ok, No issues.

ASSISTANT: Thank you for approaching us.

USER: Thank you.