You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at present?

USER: My name is Kathleen Turner, I want to book a flight on 03/11 to visit my grand father's home. Can you book a connecting flight for me?

ASSISTANT: Sure, we are here to help you for booking. Let me know, On what date do you want to return?

USER: I will return on 03/13.

ASSISTANT: Ok, Can you please share your travelling airport codes?

USER: Sure, it is a round trip from Austin, TX-AUS.

ASSISTANT: Sure, Is there any class preference?

USER: No, provide me any class with in fare of 500.

ASSISTANT: Thanks for your details, we found a flight in 1000 Spirit airline with a fare of 100 and single connection. Can I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Sure, your booking has been done in economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.