You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I support you today?

USER: Owing to an emergency,I need to cancel my earlier reservation. Can you help me with that?

ASSISTANT: Sure. May I know your good name?

USER: Thank you. I am Donna Thompson.

ASSISTANT: Please,wait.

USER: Ok.

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

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for picking us.