You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how may I serve you?

USER: Due to having some emergency meeting with my friend, I have to cancel my recent reservation. Will you help me in that cancellation?

ASSISTANT: To cancel the reservation may I know your name please?

USER: Sure.

ASSISTANT: Sure, I am here to help you.

USER: I am Samuel Baker.

ASSISTANT: Thank you, please wait for minute.

USER: Ok.

ASSISTANT: Thanks for waiting. Sorry there is no reservation found on your name.

USER: Fine, thank you for your service.

ASSISTANT: Thank you for contacting us, have a good day.