You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gregory Hernandez.

ASSISTANT: How can I help you?

USER: Can you help me in cancelling my recent reservation?

ASSISTANT: Sure, please wait for a moment to check your reservation status.

USER: Ok.

ASSISTANT: Your reservation is cancelled successfully.

USER: Thank you for helping.

ASSISTANT: Thank you and have a nice day.