You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Myself Jonathan Lopez. Can you help me in booking flight ticket from AUS to ORD?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My trip dates are Mar 25 to Mar 27.

ASSISTANT: Do you have any airline preferences?

USER: I am comfortable with any airline.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a connecting flight and my depart time should be in morning.

ASSISTANT: Sorry, there are no flights available at your requested timings.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.