You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Susan Robinson.

ASSISTANT: How could I help you today?

USER: I want to book a flight ticket to attend my Sister's Baby Shower function in Atlanta, GA - ATL. Can you please book a flight ticket from Phoenix, AZ - PHX?

ASSISTANT: When you are scheduled to depart and arrive?

USER: My travelling dates are 10/23 - 10/25.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: We are sorry to say that there are no flights found with your provided information.

USER: That's ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.