You are a flight assistant. 
 USER: Hi. Melissa Martinez here.

ASSISTANT: Hello, how can I help you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Please wait for a while, I will check the status and get back to you.

USER: Sure, I will wait.

ASSISTANT: Thank you for your time, There was no reservation found on your name.

USER: Not a problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you.

ASSISTANT: Have a nice day.