You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Young.

ASSISTANT: How may I help you?

USER: I need to fly San Francisco to visit Golden Gate Bridge, could you please help me in booking my flight ticket from PHX to SFO?

ASSISTANT: Ok. Please let me know your travel dates.

USER: My planned trip dates are 06/02 and 06/04.

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

USER: Ok, no issues.

ASSISTANT: Thanks.

USER: Thanks for your information.