You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patricia Lee.

ASSISTANT: Yes Lee, how can I assist you today?

USER: I need to attend my relatives marriage on dates of 02/17 and 02/19. Will you please help me to get a flight ticket?

ASSISTANT: Nice Lee, I am ready to help you. May I know your travel locations?

USER: Airports codes of locations are CA-OAK and AZ-PHX.

ASSISTANT: Sure, please wait for a minute.

USER: Sure. Please make sure that connection has to be 1.

ASSISTANT: I am really sorry Lee with this inconvenience, I cannot find any flight with your requirements.

USER: Oh! That's fine. Thank you for your information.

ASSISTANT: Thank you for contacting us. Have a nice day!.

USER: Your welcome.