You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Carol Moore here.

ASSISTANT: Carol, how may I guide you?

USER: I would like to travel to Phoenix PHX to buy an IPHONE-X which is cheap in that city. So, could you book a flight ticket form MSP?

ASSISTANT: Can I know the dates of travel?

USER: My trip dates would be on 12/10 and returns on 12/12.

ASSISTANT: I'm sorry, there are no flights matching your requirements.

USER: Oh! No, anyways, thank you for your help.

ASSISTANT: Thank you, have a good day.

USER: Thank you.