You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best support you today?

USER: Catherine Taylor here. I am a politician, I have to meet mayor of New York. Could you book my ticket from HOU to LGA?

ASSISTANT: Sure, please hold for a while. Please share me your trip dates.

USER: My itinerary dates are 04/08 and 04/10.

ASSISTANT: Ok, do you prefer economy class or business class?

USER: I can afford 200 for my ticket.

ASSISTANT: Ok. please wait a moment. We found a direct flight with Frontier airline and 1020 is flight number with a fare of 200. Shall I proceed?

USER: Book my ticket.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.