You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Thomas Brown here.

ASSISTANT: How can I aid you?

USER: I want to cancel my trip due to some office work. Please help me in this one.

ASSISTANT: Sure, I am here to help you. Please, wait for a while.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No issues, thank you for your response.

ASSISTANT: Anyways, thank you for reaching us.