You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Adams.

ASSISTANT: How can I assist you?

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

ASSISTANT: Ok, please wait.

USER: Ok, take your own time.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

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

ASSISTANT: Most welcome.