You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to visit Shark Reef in Mandalay Bay at Las Vegas, LAS. Will you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your boarding point?

USER: I want to board from Austin, AUS.

ASSISTANT: Ok, please share your travelling dates.

USER: I would like to travel on 07/05 and intend to return on 07/07.

ASSISTANT: May I know your price limit?

USER: I can afford upto 200 for a ticket.

ASSISTANT: Ok, please provide me your name.

USER: My name is Ruth Williams.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for opting us.