You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Rebecca Campbell. I am planning to travel from PHX to SFo, help me in booking a flight?

ASSISTANT: Sure, can you please help me with your dates of journey?

USER: My travelling dates are Feb 21 to 23.

ASSISTANT: May I know your class preference please?

USER: I am ok with any type class.

ASSISTANT: Please wait for a moment.

USER: Ok, but I need 1 connection flight and return will be in afternoon.

ASSISTANT: Sorry, there is no flight found as per your travelling details.

USER: Ok, fine thank you for checking.

ASSISTANT: You are welcome.