You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name please?

USER: My name is Nancy Garcia.

ASSISTANT: How may I help you at this moment?

USER: I want to book a flight ticket on 07/06 to attend a Science festival in Las Vegas.

ASSISTANT: Ok, from where you want to start your journey?

USER: I want to start from Austin, TX - AUS.

ASSISTANT: Ok, when you would like to return?

USER: My return day is 07/08.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is NV - LAS.

ASSISTANT: A flight numbered 1010 in UA airline with fare 200 is available for you. Shall I proceed to book?

USER: Yes, please.

ASSISTANT: Ok, your booking is successful.

USER: Thank you for your service.

ASSISTANT: Thanks for reaching us, have a nice journey.