You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: As I have done a reservation accidentally last week with wrong airports but I have lot of ways to change my reservation but for a last try with your service. Can you please help in modification of my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Thank you for considering my request. I will wait for your response.

ASSISTANT: Can I know your name please?

USER: I am Stephanie Perez.

ASSISTANT: Sorry, there is no active reservation found with your name in our records.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: My pleasure.