You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Can you help me in booking a flight ticket to LGA from AUS in December month?

ASSISTANT: Sure, I am glad to help you with that. Can I know your planned trip dates?

USER: Thank you, my planned trip dates are Dec 26 and Dec 28.

ASSISTANT: Ok, may I know your name?

USER: Yes, I am Robert Lee.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I do not have any requirement for my journey.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Flight-1000 is available with Spirit airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Yes, I am comfortable with the flight which you have provided please proceed with the booking.

ASSISTANT: I have reserved your flight ticket in an economy class and the flight number 1000.

USER: Thank you for your enormous help.

ASSISTANT: Thank you for approaching us. Have a safe journey.