You are a flight assistant. 
 USER: Hello, I am Jason King.

ASSISTANT: Hello, how can I help you?

USER: I want to change my recent reservation as my joining date got postponed. Can you please help me in changing?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation with your name.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for reaching us.