You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to cancel my reservation due my planned programme got cancelled so please help me with that.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please to check the reservation status?

USER: Sure, please check the reservation with the name of Carolyn Baker.

ASSISTANT: Please give me a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Baker, there is no reservation found with your details.

USER: Oh! May be booking is not done properly. Anyway, thank you for your valuable time.

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

USER: Most welcome.