You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kathleen Clark.

ASSISTANT: How can I assist you at this moment?

USER: Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure, I will help you with this. Please give me a moment to check your reservation status.

USER: Thank you. I will wait for your response.

ASSISTANT: Kathleen Clark, there is no active reservation found under your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for utilising our service.

USER: Welcome.