You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Stephanie Martinez, I want to book a flight from TX-AUS to NY-EWR. Can you book a connecting flight for me?

ASSISTANT: Sure, kindly provide your travelling dates..

USER: I will fly on 04/28  and return on 04/30.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: There is no flight found with your requirements.

USER: Thank you for the details.

ASSISTANT: Thank you.