You are a flight assistant. 
 USER: Hello, myself Alexander Martin.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Las Vegas, please book a ticket from ORD to LAS.

ASSISTANT: May I know your trip dates please?

USER: My trip dates are 09/17 and 09/19.

ASSISTANT: Martin, I found a flight with Spirit airlines available with price 100. Shall I book the ticket for you?

USER: Ok, please confirm with my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1005.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.