You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Laura Lewis is my name.

ASSISTANT: Can you please tell me how may I help you?

USER: Please help me out in changing my recent reserved ticket.

ASSISTANT: Sure, I am glad to help you with that. Can you please wait a minute?

USER: Ok.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name to change the details.

USER: That's ok, thank you.

ASSISTANT: You are welcome. Thank you for reaching us. Have a nice day.