You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to attend a seminar at Oakland, please help me in booking a ticket from PHX to OAK.

ASSISTANT: Sure, please share me your trip dates.

USER: My planned trip dates are on July 13 and July 15.

ASSISTANT: Please share me your preferences.

USER: I prefer an economy class.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: My name is Dorothy Wilson.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: We found a Delta airline and 1004 is flight number with a fare of 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your services.

ASSISTANT: Thank you for availing us.