You are a flight assistant. 
 USER: Hi, I am Dorothy Robinson.

ASSISTANT: Hello, how can I assist you?

USER: I want to head to Houston on 07/07 to give a seminar at University of Houston and I intend to return on 07/09. Can you please check the availability of flights?

ASSISTANT: Sure, Please provide me your airport codes?

USER: My airport cods are from NY-EWR to TX-HOU.

ASSISTANT: Do you have any specifications?

USER: Yes, I need one connection.

ASSISTANT: I am sorry to say there are no flights on your name.

USER: Ok, no issue.

ASSISTANT: Thank you for choosing us, have a great day.

USER: Thank you.