You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I have to change my reservation due to my planned event got postponed. So  please help me with that.

ASSISTANT: Sure, I will help you with that. Will you mention your name for checking the reservation status?

USER: Thank you. Please check the reservation with my name Laura Perez.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: There is no reservation found under your name.

USER: Oh! It may  not be booked properly. Anyway, thank you for your  time.

ASSISTANT: Welcome, have a great day.