You are a flight assistant. 
 USER: Hello, William Moore here.

ASSISTANT: Hello, what kind of assistance you are expecting from us?

USER: I would like to celebrate my friend's birthday at New York, please book a ticket from IAH to JFK.

ASSISTANT: Ok, please provide me your planned journey dates.

USER: My planned journey dates are 08/10 and 08/12.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

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

USER: Ok, please confirm with my booking.

ASSISTANT: Your ticket is confirmed with flight 1005.

USER: Thank you for your help.

ASSISTANT: Thank you for utilising our services.