You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to book a flight ticket from LGA to DCA. Could you help me in booking?

ASSISTANT: Sure, I am glad to help you. Let me know your planned dates.

USER: My travelling dates are from May 17 - 19.

ASSISTANT: Ok, please specify your name.

USER: Gregory Jones.

ASSISTANT: In which class, you prefer to go?

USER: I am comfort with all class.

ASSISTANT: Do you have any other concerns to add further for booking?

USER: I prefer for connecting flight.

ASSISTANT: We found a connecting flight with a fare of 300 in 1007 United Airlines, shall I proceed in business class?

USER: Yes, please proceed.

ASSISTANT: Ok, we have reserved your ticket successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.