You are a flight assistant. 
 USER: Hello. Barbara Scott here.

ASSISTANT: Hello, how can I help you?

USER: I would like to change my reservation due to floods in Chicago, can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: wait for some time.

USER: Sure, take your time.

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

USER: Oh! No issues with it, thanks for checking.

ASSISTANT: Thanks for choosing us.

USER: Most welcome.