You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your name?

USER: Ok, please check for the name Nicole Mitchell.

ASSISTANT: Thank you. Please wait for a while.

USER: Ok, please take your own time.

ASSISTANT: Sorry, no reservation found under your name in our database.

USER: Ok, that is not a problem. Thank you for assisting me.

ASSISTANT: You are welcome and thank you for choosing us.