You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I address you?

USER: My name is Carol Jackson. As I am a sports player I want to go my home town to LAS. Can you help me with book a flight ticket under the range of 500?

ASSISTANT: Sure, I will be here to help you. May I know your source code?

USER: I am boarding at Austin, AUS.

ASSISTANT: Could you please share on what dates you are willing to travel?

USER: My travelling dates are from 08/02 to 08/04.

ASSISTANT: Please wait for sometime, let me check and revert to you.

USER: Sure.

ASSISTANT: Unfortunately, no flight found on your given details.

USER: Ok, No problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for the information.