You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to buy a plane ticket from PHL to LAX. Please help me in booking.

ASSISTANT: Sure, please share your journey dates?

USER: My journey dates are from Apr, 11 to Apr, 13.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: May I know your good name?

USER: Thomas Martinez.

ASSISTANT: We found a flight in Frontier airlines, flight number is 1012 with single connection and price is 100 economy class. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.