You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Can you find a flight for me from DFW to EWR?

ASSISTANT: Sure, may I know your travel dates?

USER: Ok, my planned dates are from Mar 28 to 30.

ASSISTANT: Please share me your name.

USER: Sure, I am Joshua Martinez.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight at this moment.

USER: It's ok, thank you.

ASSISTANT: Thank you.