You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: David Wright here.

ASSISTANT: How can I help you today?

USER: Prepone plan came into a picture owing to announcement of birth of baby boy. So I need to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, I can assist you with that.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your reservation status.

USER: Sure, take your time.

ASSISTANT: There is no reservation found on your name David Wright.

USER: Oh! I think something went wrong on that situation. Anyway, thank you for the information.

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

USER: Welcome.