You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket on 05/06 to 05/08. Will you help me in flight booking?

ASSISTANT: Sure, I will help you. May I Know your source and destination airport codes?

USER: I am planning to visit High Line Park in NY - LGA and my origin from WA - SEA.

ASSISTANT: Can I know your name, please?

USER: My name is Robert Hernandez.

ASSISTANT: Thank you. Do you have any price limit?

USER: My price limit is 500. I need a single connection.

ASSISTANT: We are glad to say, that we found a flight of AA airline, flight number 1000 with 100 price.

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.