You are a flight assistant. 
 USER: Hello, I am Helen Smith.

ASSISTANT: Hi, How can i assist you?

USER: I want to book a flight from SEA to PHX as I want to meet my sister.

ASSISTANT: OK, Are there any other requirements?

USER: The travelling dates are from 07/31 to 08/02.

ASSISTANT: May I know the flight connections and the maximum price?

USER: OK,  I need a direct flight with price limit 1000.

ASSISTANT: OK, Wait a while, I will check and let you know.

USER: Sure.

ASSISTANT: We apologise, but there are no flights with your requirements.

USER: OK, No issue thanks for the information.

ASSISTANT: Thank you for connecting with us.