You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Charles Wilson.

ASSISTANT: What help can I do for you Wilson?

USER: My cricket match got cancelled, can you help me to cancel my reservation?

ASSISTANT: Sure, I will help in cancelling your booking. Give me a moment to check your previous booking.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: I could not found any booking on the name you provide in our data base to cancel it.

USER: That is fine.

ASSISTANT: You are welcome.

USER: Thank you for your help.