You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to book a ticket from IAD to PHX, can you help me?

ASSISTANT: Sure, I am here to help you? May I know your name?

USER: Katherine Lope here.

ASSISTANT: Ok, please provide me your travelling dates.

USER: My travel dates are 04/02 and 04/04.

ASSISTANT: Ok, wait a moment.

USER: Ok.

ASSISTANT: There is flight available for you. Shall I book the ticket?

USER: You can proceed.

ASSISTANT: Your ticket is confirmed with fight number 1000 and airline is AA.

USER: Thank you for booking.

ASSISTANT: Your are welcome, have a safe flight.