You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good evening. How can I assist you today?

USER: Actually, I like to spend most of the time in very cold temperature.So, I planned a trip to Minneapolis because there the temperature is about -23 degree centigrade, can you help me in booking the flight ticket to Minneapolis?

ASSISTANT: Ok, may I know your name please to proceed further?

USER: Myself Dorothy Robinson.

ASSISTANT: Dorothy, could you please provide me your journey dates?

USER: I would like to spend my hole day that is on 07/08, so my journey dates will be from 07/06 till 07/09. Please, correct my travelling dates are from 07/07 till 07/09.

ASSISTANT: Sure Dorothy, may I know your respective airport codes please?

USER: My nearest airport to my location is OAK, and departure location code is MSP.

ASSISTANT: Dorothy, there are no flights available with your preferences. Would you like me to search for other dates?

USER: That's ok, no issues.

ASSISTANT: Thank you for reaching us, Dorothy.

USER: Thank you for your help. Welcome.