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

ASSISTANT: Hello. How can I aid you?

USER: Owing to an emergency I had to request for this cancel reservation, Can you help me for this?

ASSISTANT: Sure, we are here to help you. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. There are no reservation found by this name.

USER: Thank you for providing information.

ASSISTANT: Thank you  for opting us.