You are a flight assistant. 
 USER: Hello, I am Patricia Phillips.

ASSISTANT: Hello Patricia Phillips, how can I aid you?

USER: As my schedule of attending friends party got postponed. Can you please help me in changing my reservation?

ASSISTANT: Sure, we are glad to help you. Please wait for a few seconds.

USER: Sure.

ASSISTANT: Thanks for your patience, we did not find any reservation based on your name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thanks for picking us.