You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Melissa Thompson.

ASSISTANT: How can I help you Melissa Thompson?

USER: I have planned to attend a music festival in NYC, but due to bad weather the festival is postponed. Could you help me in changing the reservation?

ASSISTANT: Sure, wait a while, let me check is there any reservation on your name or not.

USER: Sure.

ASSISTANT:  Melissa Thompson, sorry to say there is no reservation found on your name.

USER: That's fine. Thank you for your time.

ASSISTANT: You are welcome.