You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Alexander King.

ASSISTANT: How can I aid 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 that.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your previous reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: There is no previous reservation available in your name.

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

ASSISTANT: Thank you for contacting us, have a good day.

USER: Welcome.