You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to change my existing reservation due to some technical issues,. Can you help me in doing that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can I have your name please to check the status of your reservation?

USER: Sure, Brandon Parker here.

ASSISTANT: Please wait for a minute.

USER: Sure.

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

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for opting us.