You are a flight assistant. 
 USER: Hi. I am Brenda Mitchell.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you please help me in changing?

ASSISTANT: Sure, please wait I will the check the reservation on your name and get back to you.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: Ok ,no problem. Thank you.

ASSISTANT: Thank you for contacting us.