You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,.

USER: I am Betty Rodriguez.

ASSISTANT: How can I serve you?

USER: I want to visit Cockerel butterfly center which is famous in Houston, TX - IAH. Can you help me to book a direct flight?

ASSISTANT: Sure, on what dates you wish to travel?

USER: I wish to fly on 03/19 and recur on 03/21.

ASSISTANT: Let me know your origin airport code please?

USER: My origin is from Austin, TX - AUS.

ASSISTANT: Please wait for a second.

USER: Sure.

ASSISTANT: Sorry Betty Rodriguez, there were no flights found with your given information.

USER: Ok, I will search another way to reach my destination. Thank you for helping me.

ASSISTANT: Thanks for approaching us.