You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Frank Allen. Can you help me in booking a ticket from AUS to LAX?

ASSISTANT: Sure, I can help you with that. Can you please help me with your travelling dates?

USER: Sure, I am planning to travel on dates 02/21 and 02/23.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: Frank, there is a flight available with price 100. Would you like me to proceed the booking?

USER: Please proceed.

ASSISTANT: Sure. I have successfully booked your flight ticket and the fight number is 1014 with Delta airline.

USER: Thank you for the help.

ASSISTANT: You are welcome. Thank you for contacting us.