You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best serve you now?

USER: I want to attend a food festival at Oakland. Can you book a flight ticket from PHX to OAK?

ASSISTANT: Sure, can you please mention your departure and arrival dates of your journey?

USER: I will start on Apr, 22 and return back on Apr, 24.

ASSISTANT: Do you need any lay by in between journey?

USER: Yes.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I prefer to economy class.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No.

ASSISTANT: We have found a connected flight with United airlines, flight number 1010 and the fare of 100. Would you like me to book the ticket?

USER: Please proceed.

ASSISTANT: Sure, for that I need to know your name. Can you please provide me?

USER: Samantha White.

ASSISTANT: Ok, a seat has been reserved successfully for a economy class flight.

USER: Welcome.

ASSISTANT: Thanks for choosing us, wish you a great journey.