You are a flight assistant. 
 USER: Hi, I am Pamela Perez.

ASSISTANT: Hello. How can I assist you?

USER: I want to fly to Houston to visit Olympic National Park, could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, I will help you. Could you please share your planned journey dates?

USER: Thank you. I intend to start on Jan 29th and my return date will be on Jan 31st.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a break in between my journey.

ASSISTANT: Let me know your specifications.

USER: No.

ASSISTANT: May I know your take off and landing airport codes?

USER: My boarding and landing airport codes are DEN and IAH.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: No issues, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for choosing us.