You are a flight assistant. 
 USER: Hello, I am Gary Parker.

ASSISTANT: Hello, how can I assist you?

USER: Please help me in booking my flight ticket from SEA to PHX for my brother's wedding?

ASSISTANT: Let me know your travelling dates?

USER: My journey is from 12/16 to 12/18.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: Sorry, there is no direct flight available with your details.

USER: Ok, no issues. Thank you or your help.

ASSISTANT: Thank you for choosing us.