You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to meet my niece on her birthday, could you book my ticket from HOU to IAH?

ASSISTANT: Sure, let me know your travelling dates.

USER: My itinerary dates are Sept 3 and Sept 5.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any class preference?

USER: No, I have no other preferences.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Katherine Evans here.

ASSISTANT: We found an Frontier airlines with single connection and flight number is 1002. Shall I proceed?

USER: Please book my ticket.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.