You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how could I aid you today?

USER: Can you please change my existing reservation under the name of Joseph Gonzalez?

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: We found a reservation with your provided name.

USER: Ok.

ASSISTANT: Can you please share me your travelling dates?

USER: My new trip dates are 09/19 - 09/21.

ASSISTANT: May I know your journey locations?

USER: My origin is from Boston, MA - BOS and destination is to Minneapolis & St. Paul, MN - MSP.

ASSISTANT: We found a flight with AA airline with fare 200 and flight number is 1008.

USER: Please proceed.

ASSISTANT: Your seat has been reserved.

USER: Thanks for your helping hand.

ASSISTANT: Thank you for choosing us.