You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Emily Martin. I would like to go for a Brooklyn Walking Tour at New York, NY - LGA. Will you help me to book a direct flight?

ASSISTANT: Sure, from where you would like to travel?

USER: I would like to travel from Dallas & Fort Worth, TX - DFW.

ASSISTANT: May I know your intended dates of travel?

USER: My travel dates are from 03/23 to 03/25.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Thank you for being wait. There are no direct flights found according to your preferences.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.