You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to heavy rain cricket match got postponed, so I need to change my existing reservation. Can you please help me?

ASSISTANT: Sure, can I know your name please?

USER: My name is Emily Jackson.

ASSISTANT: Please wait for a while.

USER: Sure, take your own time.

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

USER: No issues. Thank you for checking.

ASSISTANT: Most welcome.