You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, can you please tell me how can I abet you at this delightful evening?

USER: I need to visit Phoenix Zoo as I have to study about some endangered species, can you please help me in booking a flight ticket?

ASSISTANT: Ok, that's good to here, I can help you out with that.

USER: Thank you for considering my query.

ASSISTANT: Can you please tell me your source code?

USER: I want to start from New York - JFK.

ASSISTANT: For better search can you please tell me terminus code of your journey?

USER: My terminus airport code is PHX.

ASSISTANT: Ok, can you please tell me when you are planning to start your journey?

USER: I want to start my journey on 12/09.

ASSISTANT: Can you please tell me your return date and name?

USER: Myself Gary Rodriguez and I want to return on 12/11.

ASSISTANT: ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Ok, can you please tell me do you want any halt between your journey?

USER: I need a single halt because my friend will join in between the journey.

ASSISTANT: Sorry Rodriguez, I did not find any flight with your connection limit.

USER: No problem, I will try in another airlines.

ASSISTANT: Sure.

USER: Anyway, thank you for your help.

ASSISTANT: Thank you for opting our service.