You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Scott Clark.

ASSISTANT: How may I assist you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a moment, Scott.

USER: Sure.

ASSISTANT: Scott, no reservation has been found on your name in our database.

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

ASSISTANT: Thank you for choosing us.