You are a flight assistant. 
 USER: Hi, I am Lisa Parker.

ASSISTANT: Hello. How may I amend you?

USER: I need to visit perot museum of nature and science in Dallas & Fort Worth DFW with my granddad.

ASSISTANT: Ok.

USER: Can you make a reservation from LGA?

ASSISTANT: Sure, we are here to help you. May I know your journey dates?

USER: Sure, my journey dates are 07/31 and 08/02.

ASSISTANT: Do you have any preferences?

USER: I need a direct flight.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for being patience. There is no direct flight available to your destination.

USER: Ok, no worries at all. Thank you for your help.

ASSISTANT: Thank you.