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

ASSISTANT: Hello, how may I assist you now?

USER: I want to cancel my trip due to an urgent meeting. Can you help me?

ASSISTANT: Laura Hall, may I know your travelling dates please? Ok, please wait for a while.

USER: First check my reservation with my name.

ASSISTANT: Thank you for waiting.

USER: Welcome.

ASSISTANT: There is no active reservation found by your name.

USER: No issues. I will check again with my mails, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.