You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Anderson.

ASSISTANT: How can I aid you?

USER: I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from AUS to EWR?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: I would like to depart on May 11th and return on May 13th.

ASSISTANT: Do you have any preferences?

USER: I am looking for a connecting flight. And make sure that my depart time is afternoon.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you.