You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you help me to cancel the reservation I had done recently?

ASSISTANT: Sure, I am here to help you and may I know your name please?

USER: Ok, please check for the name Nancy Parker.

ASSISTANT: Wait for a moment.

USER: Ok, please take your own time.

ASSISTANT: I regret to say that there is no reservation obtained on your name in our data base.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for consulting us.