You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I'm Stephanie Carter.

ASSISTANT: Nice to meet you, Carter.

USER: Can you please help me in changing my recent reservation?

ASSISTANT: Sure, I will help you in this. Please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Carter, there is no reservation found as per your name to change your reservation.

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

ASSISTANT: You are welcome and have a great day.