You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I render you today?

USER:  I am Gregory Green. I want to cancel my reservation owing an emergency. Can you please cancel my ticket?

ASSISTANT: Sure, we are here to help you. Please, wait.

USER:  Ok.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: Thank you for your response.

ASSISTANT: Thank you for reaching us.