You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Andrew Lewis want to go for vacation with my friends at Charlotte, can you please book me a ticket?

ASSISTANT: Sure, can you provide me your travelling dates?

USER: My travelling dates are 08/19 and 08/21.

ASSISTANT: OK,  can I know your airport codes?

USER: I want to travel from NV-LAS to NC-CLT.

ASSISTANT: OK, please wait for few minutes.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a flight with Hawaiian in single connection and price of 300. Flight number 1018. Shall I proceed with booking?

USER: Yes, please proceed with my booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your kind service.

ASSISTANT: Thank you, for choosing us.