You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name?

USER: I am Patrick Hall.

ASSISTANT: Patrick, how can I help you today?

USER: As my friends marriage is relocated to Austin, help me in changing my reservation.

ASSISTANT: Sure, I can help you with that. Give me a moment to check your details.

USER: Sure.

ASSISTANT: Patrick, there is no reservation found under your name.

USER: Its ok, thank you for your assistance.

ASSISTANT: Thank you for reaching us.