You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER:  Owing an emergency want to cancel my reservation, can you help me with it please?

ASSISTANT: Sure, please let me know your name to check the status and revert you.

USER: My name is Dorothy Edwards.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found by your name in our data base.

USER: That's ok, thank you for the response.

ASSISTANT: Thnak you for choosing us.