You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit New York, can you please book me a ticket from PHX to LGA?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My planned dates of journey are Nov 13 and Nov 15.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any specifications?

USER: I prefer to depart in evening flight.

ASSISTANT: May I know your name?

USER: My name is Justin Lee.

ASSISTANT: Sorry Justin Lee, no flights are available from PHX in the evening.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Ok.

USER: Thank you for providing information.

ASSISTANT: Thank you for choosing us.