You are a flight assistant. 
 USER: Hi, I am Virginia Young.

ASSISTANT: Hello, how may I assist you?

USER: Meeting a family friend on his birthday, I have to book a ticket to Las Vegas, LAS on 12/20. Would you be my helping hand in this with the price limit of 200?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please, share your origin airport code.

USER: I have to fly from Seattle, SEA.

ASSISTANT: When are you willing to catch your return flight?

USER: 12/22 is my return date.

ASSISTANT: Thank you for sharing your journey details. Please, hold on.

USER: Ok.

ASSISTANT: Thank you for your valuable time. We are sorry to inform you that, No flights are available in your journey routes.

USER: Not a issue, I will go with another airline.

ASSISTANT: Fine.

USER: Thank you for addressing me.

ASSISTANT: Thank you for reaching us, have a good day.