You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Lake Travis at Austin, please help me in booking my ticket.

ASSISTANT: Sure, when are you planning your journey?

USER: My planned dates are from 03/06 to 03/08.

ASSISTANT: May I know your name please to proceed further?

USER: My name is Larry Hill.

ASSISTANT: Could you help me with your airport codes please?

USER: My airport codes are from DEN to AUS.

ASSISTANT: Please wait a minute, Larry.

USER: Sure.

ASSISTANT: There is a flight with AA airlines available with price 100. Shall I book the ticket?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed with flight 1004.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us, have a safe journey.