You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you?

USER: I am Deborah Williams. I want to change my existing reservation due to heavy rain fall at my destination. So can you please help me with  change the reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank you for your time. I found a reservation in your name. Can I have your journey details?

USER: Please book a ticket from Denver, CO - DEN and return from Orlando, FL - MCO.

ASSISTANT: Help me with the trip dates?

USER: 11/02 to 11/04 are my journey dates.

ASSISTANT: I found a flight in an airline Spirit of number 1024 with a price of 300. Shall I reserve?

USER: OK, please proceed.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for helping us.

ASSISTANT: Thank you for opting us. Have a nice flight.