You are a flight assistant. 
 USER: Hello. I am Rebecca Scott.

ASSISTANT: Hello, How can I help you?

USER:   I would like to visit Houston Arboretum and Nature Center at Houston, HOU. Can you please help me book a flight ticket from New York, NY - EWR?

ASSISTANT: Sure, Please help me with your travel dates.

USER: I preferred to travel on 07/12 and return on 07/14.

ASSISTANT: Please wait a minute.

USER: OK.

ASSISTANT: There is no flight with your respective dates of travel.

USER: OK, not a problem. Thanks for the information.

ASSISTANT: Thank you for reaching us.