You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Eric Jackson.

ASSISTANT:  How can I help you?

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

ASSISTANT:  Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation found on your name.

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

ASSISTANT: Thank you for availing us.