You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have planned to go for a arts and crafts festival at San Francisco. Can you please book a ticket with a price limit of 500?

ASSISTANT: Sure, kindly provide me your travel dates?

USER: I would like to depart on 06/11 and return on 06/13.

ASSISTANT: May I know your airport codes?

USER: My boarding point is LGA and landing point is SFO.

ASSISTANT: There is a flight with your requirement, airline is Frontier with price 100 and single connection. Can I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: Your booking is done. May I know your name?

USER: My name is Debra King.

ASSISTANT: Thanks for reaching us, have a good day.