You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I want to cancel my recent reservation due to sudden postpone of my client meeting.

ASSISTANT: Ok.

USER: Can you help me in doing that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please share your name, so that I will check the reservation list.

USER: Sure, Emma Baker here.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name Emma Baker in our database.

USER: No problem.

ASSISTANT: Ok, Thank you.

USER: Thank you for your kind information.