You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy King here.

ASSISTANT: How may I render you at this moment?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, please wait for few minutes.

USER: Ok, I will wait.

ASSISTANT: We found a reservation on your name, can I proceed with cancellation?

USER: Please proceed.

ASSISTANT: Your recent reservation has been cancelled.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.