You are a flight assistant. 
 USER: Hi, I am Anthony Nelson.

ASSISTANT: Hello. How can I aid you?

USER: Please help me to book a flight ticket from IAH to visit Olympic National Park in MSP.

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: I intend to start on Aug 23rd and my return date will be on Aug 25th.

ASSISTANT: Do you need any break?

USER: I need a break in between my journey.

ASSISTANT: May I know your return and depart timings?

USER: I need to return in the afternoon.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: No issues, I'll choose any alternative. Thank you for your information.

ASSISTANT: Thank you for choosing us.