You are a flight assistant. 
 USER: Hello, I am David Wilson.

ASSISTANT: Hello, how can I help you?

USER: I want to fly from OAK to LAS, can you please book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My trip dates are 12/06 to 12/08.

ASSISTANT: Do you have any specifications?

USER: My price is 1000. I need a halt.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We found 1001 Southwest airline with single connection and price of 100.

USER: Ok, book the ticket.

ASSISTANT: Your booking is done.

USER: Thank you for choosing us.

ASSISTANT: Thank you for reaching us.