You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from MN - MSP to CA - OAK.

ASSISTANT: Ok, provide me your trip dates?

USER: My trip dates are 01/06 and 01/08.

ASSISTANT: For further proceeding, let me know your good name please.

USER: My name is Stephanie Hernandez.

ASSISTANT:  Stephanie Hernandez, sorry to inform you there is no flight available with us on your provided dates.

USER: Ok, thank you for the information.

ASSISTANT: It's my pleasure.

USER: No problem I will go with another alternative.