You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Alexander Taylor here.

ASSISTANT: Taylor, how may I help you?

USER: Can you please help me in cancelling my recent booking? As I have given wrong details in it.

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Ok, I'll be online.

ASSISTANT: Sorry, no reservation is available by your name.

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

ASSISTANT: Thank you for contacting us.