You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. can you please help me out with changing of my reservation?

ASSISTANT: Sure, may I know your name?

USER: Myself Patrick Moore.

ASSISTANT:  Happy to inform you, we have found your reservation. Please provide me your new airport codes.

USER: My new airport codes are from BOS to CLT.

ASSISTANT: Can I know your trip dates?

USER: My trip dates are from 07/10 to 07/12.

ASSISTANT: D you have any additional requirement?

USER: I need a single connecting flight.

ASSISTANT: Ok, please wait a minute.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in Delta airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Please proceed  my booking.

ASSISTANT: Your ticket is booked in 1005 flight.

USER: Thank you for your help.

ASSISTANT: Most welcome.