You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I have to attend a San Francisco SFO from PHX. Can you make a reservation for me?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Ok, my planned trip dates are on June 28 and return on June 30.

ASSISTANT: Do you have any connection limit for this journey?

USER: Ok, I need a business class.

ASSISTANT: May I know your class preference for this trip?

USER: I have a business class.

ASSISTANT: May I know your name please?

USER: I am Ashley Martinez.

ASSISTANT: Ashley Martinez, there are no flight services are available with your requirements.

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

ASSISTANT: Thank you for contacting us.