You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Janet Collins.

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: Sure, please wait a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for contacting us.