You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you make a flight reservation from OAK to PHX?

ASSISTANT: Sure, may I know the travelling dates?

USER: June, 16 and June, 18 are my travelling dates.

ASSISTANT: Do you have any connection limits?

USER: I need connecting flight.

ASSISTANT: Is there any other requirement?

USER: No.

ASSISTANT: May I know your name?

USER: Andrew Jones.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, no flights found with your chosen dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for opting us.