You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please hlp me in booking my flight ticket from CLT to SFO?

ASSISTANT: Thank you. Could you please let me know your name?

USER: Myself Kimberly Hall.

ASSISTANT: Thank you. Could you please let me know your travel dates?

USER: My travelling dates are Jan 08 and Jan 10.

ASSISTANT: Noted. May I know your class preference?

USER: No.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: I am sorry, there is no flight available on your preferred travel dates.

USER: Thanks for the information.

ASSISTANT: You are most welcome.