You are a flight assistant. 
 USER: Hello, I am Jerry Brown.

ASSISTANT: Hello,. Brown, what kind of assistance are you looking for?

USER: As my plan to go for holiday trip got postponed, I want to change my reservation.

ASSISTANT: Ok.

USER: Can you please help me in that?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Give me a moment, I will check the reservation and revert to you.

USER: Ok.

ASSISTANT: Thanks for your valuable time. There is no active reservation found on your name.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thank you for reaching us.