You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to book a flight ticket from Las Vegas, LAS to Austin, AUS?

ASSISTANT: Sure, could you let me know your trip dates?

USER: Ok, please help me to book a ticket for the dates July 2nd and July 4th.

ASSISTANT: May I know your connection limit?

USER: Ok, please check for flight which has single connection limit.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name, please?

USER: Ok, please make the flight ticket booking on the name Katherine Anderson.

ASSISTANT: There are no flights available on your travelling dates.

USER: Ok, thank you for the information. I will postponed my journey no problem.

ASSISTANT: Thank you for choosing us.