You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gary White here.

ASSISTANT: White, how can I assist you?

USER: Please book my ticket from IAD to PHX.

ASSISTANT: Sure, I will help you. Can you please provide me your travel dates?

USER: My trip dates are 06/08 and 06/10.

ASSISTANT: Ok, please wait for a while.

USER: Please make it fast.

ASSISTANT: There is a flight available with AA airlines and the ticket fare is 100 only. Is that ok for you?

USER: Please book my ticket.

ASSISTANT: Your ticket is booked and your flight number is 1019.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.