You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michelle Thomas.

ASSISTANT: How can I assist you?

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

ASSISTANT: Please give me a minute. Sorry, there is no reservation available on your name.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us.