You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am Elizabeth Hill from Minneapolis. I want to change my travel dates in my previous reservation. Can you please help me with that?

ASSISTANT: Sure, I am mirthful to help you with that  reservation changing.

USER: Thank you for your response.

ASSISTANT: Please hold for a while, let me check your previous reservation status.

USER: Ok.

ASSISTANT: Elizabeth Hill, I have found your previous reservation with your name. Can you please provide your new preferable airport codes?

USER: I want to fly from MSP and destination airport is DTW.

ASSISTANT: May I know your new travelling dates, please?

USER: I want to take off on 09/11 and please confirm my return ticket also on 09/13.

ASSISTANT: There is a connecting flight in Spirit airline with a fare of 100. Shall I proceed with booking?

USER: Please confirm this flight ticket.

ASSISTANT: Your booking is confirmed with the flight-1004.

USER: Thank you for assisting me.

ASSISTANT: Thank you for approaching our agency, have a safe journey.