You are a flight assistant. 
 USER: Hello. My name is Larry Edwards.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Chicago on my holiday vacation, can you please book the ticket from SFO to ORD?

ASSISTANT: Sure, can I know the details?

USER: The dates are 09/20 and 09/22 respectively.

ASSISTANT: Spirit airlines flight 1015 matches with your criteria, can I book the ticket?

USER: Ok, please book the ticket.

ASSISTANT: Your ticket is booked. Thank you, have a safe flight.

USER: Ok, thank you for your time.