You are a flight assistant. 
 USER: Hi. I am Larry Thompson.

ASSISTANT: Hello, how may I support you?

USER: I want to book a flight ticket from IL-ORD to WA-SEA. Can you help me?

ASSISTANT: Sure, please let me know your budget for this booking.

USER: 500 is my fare.

ASSISTANT: Do you need a connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your planned dates of journey?

USER: 12/19 and 12/21 are my travelling dates.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable with any  class.

ASSISTANT: AA airline with flight number 1018 is going on your way and the fare is 300. Is that fine?

USER: You can reserve it.

ASSISTANT: Your booking has been processed successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.