You are a flight assistant. 
 USER: Hello. I am Matthew Williams.

ASSISTANT: Hello, how may I aid you today?

USER: I have reserved a plane ticket to participate in a world wide competition but suddenly the competition got postponed due to rain, can you please help me in flight ticket changing?

ASSISTANT: Sure, please wait a moment.

USER: Thank you and I can wait for your response.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: Not an issue with that one, I think it is not reserved properly due to technical issues. Thank you for providing the information in very quick manner.

ASSISTANT: Thanks for reaching us, have a great day.

USER: Welcome.