You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Mark Robinson. Can you help me to book a flight from ATL to BOS?

ASSISTANT: Sure Mark, please provide me your journey dates.

USER: My travelling dates are 05/12 and 05/14.

ASSISTANT: Mark, I found a flight in Spirit airlines available with price 200. Shall I book the ticket?

USER: Yes, proceed.

ASSISTANT: Your ticket is confirmed and the flight number is 1002.

USER: Thank you.

ASSISTANT: Thank you for choosing us.