You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I render you?

USER: I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So, I need a few changes in my reservation. Can you help me with changing my ticket?

ASSISTANT: Sure, we are happy to help you. May I know your good name please?

USER: Ok, Rachel Anderson is my name.

ASSISTANT: Thanks for your name, we found a reservation on your name. Please share me your new journey dates?

USER: Ok, I want to start on 05/10 and return on 05/12.

ASSISTANT: Please help me with your airport codes?

USER: My airport codes are DTW and SFO.

ASSISTANT:  Sorry for the inconvenience caused, currently no flights are running to that locations due to some technical issues.

USER: Ok, not a problem. Thanks for the information.

ASSISTANT: Thank you for choosing us.