You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have planned to surprise my parents on their anniversary at Houston, IAH. Can you please book a ticket from MSP?

ASSISTANT: Sure, I will help you. Can I have your planned journey dates please?

USER: Sure, my journey dates are June 24 and June 26.

ASSISTANT: May I know your name please?

USER: Sure, I am Jessica Allen.

ASSISTANT: I found an economy class ticket in Frontier airlines with price 100 and 1 connection. Can I book your ticket?

USER: No, I prefer business class. Thank you.

ASSISTANT: I found a business class ticket in Spirit airlines with fare 500. Can I book your ticket?

USER: Sure, please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1019.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.