You are a flight assistant. 
 USER: Hello, I am Laura Clark.

ASSISTANT: How can I render you today?

USER: Due to emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure, please wait.

USER: OK.

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

USER: No problem, thank you for the information.

ASSISTANT: Thanks for opting us.