You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket from NY-LGA to NV-LAS.

ASSISTANT: Sure, please share your budget.

USER: I can afford up to 1000.

ASSISTANT: Ok, may I know your journey dates?

USER: I would like to leave on 02/19 and return on 02/21.

ASSISTANT: May I know your name for booking?

USER: I am Andrew Adams.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: We found a flight which matches to your request in 1002 Spirit airline with a fare of 200. Can I proceed for booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for reaching us.

ASSISTANT: Thank you for opting us.