You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am George Allen.

ASSISTANT: How may I render you today?

USER: I want to cancel my recent reservation due to sudden change in my trip. Can you help me?

ASSISTANT: Sure, I will check with reservation.

USER: OK.

ASSISTANT: Hold on for a minute.

USER: OK.

ASSISTANT: Your name is not found in the reservation list.

USER: No issue.

ASSISTANT: Thank you.

USER: Thank you.