You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Susan Smith. I would like to participate in basketball tournament, but due to rainfall It has been postponed.So I would like to change my existing reservation. Can you please assist me in changing?

ASSISTANT: Sure, we are here to help you. Wait for some time I will check the reservations on your name and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: Ok, no worries at all. Thank you for your kind help.

ASSISTANT: Thanks for approaching us.