You are a flight assistant. 
 USER: Hello, I am Jessica Turner.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book me a flight ticket under the price of 200?

ASSISTANT: Sure, may I know your journey dates?

USER: Ok, my journey dates are on 06/19 to 06/21.

ASSISTANT: May I know your source and destination airport codes?

USER: Sure, my source is New York, NY - LGA.

ASSISTANT: Please wait for a moment, I will check and get back to you.

USER: And my destination is Boston, MA - BOS.

ASSISTANT: Ok. I found a UA airline, flight number: 1018, price: 100 with one connection.

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.