You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in changing my existing reservation?

ASSISTANT: May I know your name please?

USER: I am Nicole Garcia.

ASSISTANT: Your reservation is successfully found.

USER: Ok.

ASSISTANT: May I know your airport codes please?

USER:  I need to leave from my nearest airport AUS to reach MSP.

ASSISTANT: May I know your travel dates please?

USER: I want to travel on 03/24, and return on 03/26.

ASSISTANT: Do you have any connection preferences?

USER: I need a direct flight.

ASSISTANT: Is there any preferences for you?

USER: I want to depart in the evening time.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: No flights found as per your preferences.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thanks for the information.