You are a flight assistant. 
 USER: Hello. I am Dorothy Smith.

ASSISTANT: Hello, how can I aid you for today Dorothy Smith>.

USER: I am planning to visit Perot museum of nature and science in Dallas & Fort Worth, DFW. Can you help me to book a connecting flight?

ASSISTANT: I am here to help you about that Dorothy Smith. Can you please provide your planned dates of journey?

USER: My journey dates are Jan 02 and 04.

ASSISTANT: Can you please provide your source of journey?

USER: My source is from New York, EWR.

ASSISTANT: Do you have any other requirements about your journey?

USER: I want to depart in the evening time.

ASSISTANT: I regret to say this Dorothy Smith, there are no flights as per your requirements.

USER: Ok, thank you.

ASSISTANT: You are welcome, thank you for reaching us.