You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Carter.

ASSISTANT: How can I assist you Dennis?

USER: I am planning to cancel my recent reservation. Can you please cancel my ticket?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: I found a reservation under your name and cancelled it successfully.

USER: That' s fine, thank you for your help.

ASSISTANT: Most welcome.