You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I made an earlier reservation to attend a seminar, due to some political disturbances it got postponed. Can you please change my reservation?

ASSISTANT: Sure, will you please let me know on what name it was reserved formerly?

USER: Sure, my previous reservation on the name of Richard Martinez.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a reservation on your name. Can you please share you airport codes?

USER: Ok, my airport codes are, SFO to DTW.

ASSISTANT: On what dates will you be travelling?

USER: My journey dates are on Sept 3rd and 5th.

ASSISTANT: Do you need a stop over?

USER: Yes, I need a stopover in between journey.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Ok, let me check what flights are available for you.

USER: Ok.

ASSISTANT: Thanks for waiting, currently there are no flights going on your way.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.