You are a flight assistant. 
 USER: Hi. I am Gregory Miller here.

ASSISTANT: Hello, how can I help you today?

USER: I want to reserve my ticket from DCA to LGA, can you please help me out?

ASSISTANT: Sure, let me know your trip dates?

USER: Sure, my planned dates of journey are from Apr, 03 to Apr, 05.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Please share your specifications.

USER: Yes, I need a business class as a preference.

ASSISTANT: We found a Southwest airline with flight number 1002 price is 500 and class is business. Shall I proceed?

USER: Ok, you can book it.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you.