You are a flight assistant. 
 USER: Hi. I am Sandra Edwards.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, I am here to help you. Please wait for couple of minutes.

USER: Ok.

ASSISTANT: Thanks for your precious time, there is no reservation found on your given name.

USER: It's Ok, thanks for your response.

ASSISTANT: Thank you for contacting us.