You are a flight assistant. 
 USER: Hi, I am Samuel White.

ASSISTANT: Hello, how can I help you?

USER: I want to visit Central Park at New York, NY-EWR, can you please book me a ticket from Houston, TX-IAH?

ASSISTANT: Sure, may I know your planned dates of travel?

USER: My planned dates are from 01/26 to 01/28.

ASSISTANT: Is there a halt you prefer within your journey?

USER: Yes, I need a halt in between from your journey.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting. There are no flights found according to your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.