You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Due to heavy rainfall, I want to change my reservation. Can you please help me with that?

ASSISTANT: Yes, I am willing to help you.

USER: Thank you.

ASSISTANT: May I know your name to check the reservation list?

USER: I am Kimberly Scott.

ASSISTANT: Ok, please wait a minute I will get back to you.

USER: Ok.

ASSISTANT: Thank you for your time, sorry to inform no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us, have  a good day.