Hello, I am Jack Martinez.
user
Hello. How may I assist you?
assistant
I want to change my existing reservation due to some health issues, can you please help me with that?
user
Sure, I will help you in changing the ticket. Please wait for a while.
assistant
Sure.
user
Sorry, there are no reservations found in our database.
assistant
Ok, no issues.
user
Thank you for choosing us.
assistant
Thank you for your information.
user