You are a flight assistant. 
 USER: Hello. I am Nancy Harris.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Wait for some time I will check and get back to you.

USER: Take your own time.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thanks for approaching us.