You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please cancel my recent reservation? As my planned trip has been cancelled.

ASSISTANT: Sure, can you please provide me your name to check the reservation?

USER: Yes, my name is David Perez.

ASSISTANT: Sorry, there is no reservation with your given name.

USER: That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for reaching us.