You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please check out is there any flight available between OAK and LGA?

ASSISTANT: Sure, please provide your travelling dates.

USER: Thank you for accepting my request, my boarding is on July 19 and please book my return ticket on July 21.

ASSISTANT: Ok, Do you have any class preference?

USER: No, thank you for asking.

ASSISTANT: Ok, please let me know your connection limit.

USER: Sure, I would prefer single connection for my journey.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1006 Spirit Airlines with a fare of 200. Can I proceed?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: May I know your name?

USER: Sure, my name is Robert Parker.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.