You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ruth Carter.

ASSISTANT: How can I assist you?

USER: Due to the heavy rains, I just wait to change my reservation to new travelling dates. Hope you are helping me.

ASSISTANT: Yes, I will help you with that. Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, no reservation found on your name to change.

USER: It's ok, thanks for checking.

ASSISTANT: Most welcome.