You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please assist me in booking a flight from PHX to SFO?

ASSISTANT: Sure, let me know your journey dates.

USER: My journey dates are June 22nd and 24th.

ASSISTANT: Do you have any preference in connection?

USER: I want to fly in a direct flight.

ASSISTANT: Ok, please share me your name.

USER: My name is Sarah Lopez.

ASSISTANT: Sarah Lopez, sorry to say you that there is no flight available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.