You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a ticket from PHX to EWR.

ASSISTANT: Sure, may I know the travelling dates?

USER: Depart date is Dec, 9 and return by Dec, 11.

ASSISTANT: Do you have any connection limit?

USER: I would prefer connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Kathleen Anderson.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, no flights found with your selected dates.

USER: Thanks.

ASSISTANT: Thank you for availing us.