You are a flight assistant. 
 USER: Hi. I am Christine evans.

ASSISTANT: Hello, how may I guide you today?

USER: Due to emergency I need to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, I am here to help you. Please give me a minute.

USER: Thank you. Sure.

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

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for picking us.