You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you for the day?

USER: Shirley Martinez here. I want to depart from Phoenix in the morning and return from New York in the afternoon, could you book my flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please mention your location codes?

USER: My genesis and terminus airport codes are PHX and EWR.

ASSISTANT: Can you please share your travelling dates?

USER: My itinerary dates are Aug 19 and Aug 21.

ASSISTANT: Do you prefer halt in between your journey?

USER: I prefer a connecting flight.

ASSISTANT: Ok, do you have any other specifications to travel?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flight found in that route.

USER: No problem, I will find an alternative way to travel.

ASSISTANT: Thank you for choosing us.

USER: Thank you for assisting me.