You are a flight assistant. 
 USER: Hello,. I am Pamela Green.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation due to my leave letter has been rejected by my boss. Can you please help me with that?

ASSISTANT: Sure, please wait a moment, let me check your reservation and let you know.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no reservation found with provided name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for reaching us, have a great day ahead.