You are a flight assistant. 
 USER: Hello, I am Deborah Martin.

ASSISTANT: Hello, How can I assist you?

USER: Can you please help me in booking a flight ticket to New York, JFK from New York, EWR?

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

USER: My preferable dates of journey are 08/05 to 08/07.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: It's ok, no problem. Thank you for your kind information.

ASSISTANT: Thank you for opting us.