You are a flight assistant. 
 USER: Hello. Paul Johnson here.

ASSISTANT: Hello, what can I do for you?

USER: I want to book a flight ticket on the route from Austin AUS to LAS, can you help me?

ASSISTANT: Sure, please share your dates.

USER: I will be travelling on the dates from 02/03 to 02/05.

ASSISTANT: Ok, mention your price limit.

USER: My budget is 200.

ASSISTANT: Sorry, no flights were found based on your details.

USER: Ok, no issues with it, thank you for assisting me.

ASSISTANT: Thanks for availing our service.

USER: Most welcome.