You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Pamela Lewis.

ASSISTANT: How can I help you?

USER: I would like to change my reservation as I am leaving for pilgrimage, can you please help me out?

ASSISTANT: Sure, I'm here to help you with that. Please wait for a while.

USER: Thank you.

ASSISTANT: Lewis, there is no reservation found under your name to do changes in that.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.