You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Helen Hernandez.

ASSISTANT: How may I be of your help?

USER: I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, wait for a moment.

USER: Ok.

ASSISTANT: There is no reservation found with your provided name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thanks for contacting us.