You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Frank Hall. I would like to book a flight ticket from Chicago IL-ORD to San Francisco CA-SFO. Could you please avail me?

ASSISTANT: Sure, I am perky to help you. Let me know your trip dates?

USER: My trip dates are 06/13 and 06/15.

ASSISTANT: Do you need any flag stop in between your journey?

USER: Yes, I need a flag stop.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: There is a Spirit airline with flight number 1014 and price 100. Shall I go with booking?

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for availing us.