You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you for the day?

USER: I want to modify my reservation which is done recently due to some problems, can you please help me?

ASSISTANT: I am here to help you with all the concerns related to flight booking.

USER: Thank you.

ASSISTANT: May I know your good name to check with your recent reservation status?

USER: Sure, my name is Steven White.

ASSISTANT: Please give me a moment to check with availability.

USER: Sure, I will wait.

ASSISTANT: Steven White, there is no flight reservation available by your name in our database.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching our agency.

USER: Anyways, thank you for your service.

ASSISTANT: Have a great day ahead.