You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you for the day?

USER: I need you to book a flight ticket from LAS to PHX. Please help me.

ASSISTANT: Sure, can you please let me know your journey dates?

USER: March 22 and 24 are my planned travelling dates.

ASSISTANT: May I know your name please?

USER: My name is Virginia Gonzalez.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I need a break in my journey.

ASSISTANT: Is there any more specifications in your journey?

USER: I would you like fly in a normal-cost airlines.

ASSISTANT: Sorry to inform you that, we did not find any flights matching your given details.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.