You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I assist you?

USER: Please book a flight from New York, NY-JFK to Phoenix, AZ-PHX, for arts and crafts festival. I am Jennifer Lopez.

ASSISTANT: Sure, we here to help you. Kindly mention your trip dates please?

USER: Departure is on 08/12 and return by 08/14.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Unfortunately there is no flights find on your details.

USER: Thanks for the assistance.

ASSISTANT: Thanks for choosing us.