You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: My cricket match got postponed due to heavy rainfall, can you please help me in changing the reservation?

ASSISTANT: Sure, may I know your name?

USER: I am Jason Johnson.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Jason Johnson, no reservation found on your name.

USER: OK, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you.