You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Adams.

ASSISTANT: How may I help you at this moment?

USER: Can you please help me in cancelling my flight ticket?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Can you please wait a minute?

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you, there is no reservation found under your name to cancel.

USER: Ok, that's fine. Thank you for your help in searching.

ASSISTANT: Thank you for reaching us.