You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Gonzalez.

ASSISTANT: How can I assist you at this moment?

USER: I would like to visit Campbell moutain in Phenoix, can you please help me in booking a flight ticket from MSP to PHX?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates?

USER: My journey dates are from Aug 26 till Aug 28.

ASSISTANT: Do you need any halt in this journey?

USER: Yes, I need one halt.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Donald Gonzalez, there are no flight services available on this route on your provided dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for contacting us.