Hello.
user
Hello. How may I serve you today?
assistant
Can you help me in changing my existing reservation?
user
Sure, may I know your name please?
assistant
I am Helen Robinson.
user
Ok, please wait a moment I'll check the reservation list.
assistant
Sure.
user
Thank you for waiting, we found a reservation by this name.
assistant
OK.
user
Can I know your planned travelling dates?
assistant
I want to travel on 09/29, and return on 10/01.
user
Please share your source and destination airport codes.
assistant
 I need to leave from my nearest airport MSP to reach DEN.
user
Do you have any other requirements to met?
assistant
I need a connecting flight.
user
 We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.
assistant
Ok, no problem.
user
Thank you for approaching us.
assistant
Thanks for the information.
user