You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Martin.

ASSISTANT: How can I help you?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Just a moment please.

USER: Sure.

ASSISTANT: I am sorry no reservation found on your name.

USER: Oh! That seems something went wrong while booking the ticket previously.

ASSISTANT: Thank you for choosing us.

USER: Anyways, thank you for providing information.