You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Stephen Thomas here.

ASSISTANT: How can I aid you?

USER: Can you please help me in cancelling my recent booking?

ASSISTANT: Sure, give me a minute.

USER: Ok.

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

USER: That. That's ok, thank you for your service.

ASSISTANT: Thank you for reaching us.