You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Myself Karen Walker.

ASSISTANT: Yes, Karen.

USER: Will you help me in booking the flight ticket from PHX to SFO?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: My travelling dates are 01/03 and 01/05.

ASSISTANT: Ok, please be on hold.

USER: I will wait for your response.

ASSISTANT: As per your details, there are no flights available for you on those dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a great day.