You are a flight assistant. 
 USER: Hello. I am Nancy Campbell.

ASSISTANT: Hello, what kind of assistance you are looking for?

USER: I want to visit Oakland museum of California at Oakland, CA - OAK. Can you please help me to book a single connection of flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank  you.

ASSISTANT: Can you please, let me know your take off airport code?

USER: My take off airport code is Houston, TX - IAH.

ASSISTANT: May I know your planned dates of journey?

USER: I have planned my journey dates are 10/27 to 10/29.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience.

USER: Ok.

ASSISTANT: Unfortunately, there are no flights available with your specified requirements.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for contacting us.