You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Richard Jones.

ASSISTANT: How can I help you?

USER: Can you help me booking flights on these dates 12/17 and 12/19?

ASSISTANT: May I know your desired airport codes please?

USER: My travelling airport codes are ATL to LAS.

ASSISTANT: There is a flight with connection limit 1 and fare 100, is it ok for you?

USER: Yes, It is ok book it.

ASSISTANT: Your ticket is booked, flight number 1027 with Delta airlines.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.