You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Kathleen Carter. I would like to change to change my reservation, due to heavy rainfall my tennis match has been postponed. Could you please help me with reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patient, There was no reservation found on your name.

USER: Ok, no issues. Thank you for your valuable information.

ASSISTANT: Thank you for choosing us.