You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, can you please let me know your name to check with the status?

USER: Ok, please check for the name Barbara Collins.

ASSISTANT: Please wait a moment while I check with the reservation status.

USER: Ok, please take your own time.

ASSISTANT: Thank you for waiting. Sorry, there is no active reservation found under your name to cancel.

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

ASSISTANT: Thank you for reaching us.