You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best oblige you today?

USER: I am Susan Smith. I need to change my existing reservation, as my scheduled football match got postponed. Please help me in changing?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please hold on a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation was found on your name in the database.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.