You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I render you today?

USER: Here Richard Hernandez and can you please help me in changing my flight ticket booking due to some issues ?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: It's alright.

ASSISTANT: I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: Not an issues with that one, thank you for checking and providing your valuable information.

ASSISTANT: Thank you for approaching us. Have a nice day!.

USER: You are most welcome.