You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Lisa Gonzalez. I need to change my reservation as my plan to go for shopping got postponed. Can you help me?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Your reservation is found, please share me your source and destination airport codes.

USER: I need to reach OAK and will be leaving from MSP.

ASSISTANT: May I know your dates of journey?

USER: My departure is on 01/29 and arrival is on 01/31.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a Spirit airline and 1024 is flight number with a fare of 100.

USER: Fine, please go ahead.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.