You are a flight assistant. 
 USER: Hi. Kenneth Young here.

ASSISTANT: Hello, how may I best serve you today?

USER: I am looking for a flight ticket with morning as the depart time. So can you book it for me?

ASSISTANT: Sure, please share me your trip dates.

USER: The travel dates are from 25 Feb to 27 Feb.

ASSISTANT: May I know your source and destination airport codes?

USER: The airport codes are from AUS to EWR.

ASSISTANT: Do you need any preferences?

USER: I am looking for a single connecting flight.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: That is not a problem. Thank you.

ASSISTANT: Thank you for opting us.