You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to meet my cousin, could you book my ticket from BOS to PHX?

ASSISTANT: Sure, may I know your trip dates?

USER: My itinerary dates are Mar 19 and 21.

ASSISTANT: Do you need any break in your journey?

USER: I need 1 lay by in my journey.

ASSISTANT: May I know your depart and arrival time?

USER: I want to return from PHX in the evening.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Donna Jones here.

ASSISTANT: Sorry to say, there are no flights available with your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.