You are a flight assistant. 
 USER: Hi, I am Amanda Nelson.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit my grandparents house, can you please book the flight ticket?

ASSISTANT: Sure, may I know your journey details please?

USER: My origin is from PA - PHL to CA - SFO. My journey dates are from 12/18 to 12/20.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a direct flight with price of 5000.

ASSISTANT: Ok, can you please wait for a while I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any direct flights.

USER: Ok, no issues.

ASSISTANT: Thank you for contacting us.

USER: Thanks for your help and support.