You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: As my meeting got postponed I want to change my reservation, can you please help me out with this?

ASSISTANT:  Sure, can you please mention your name to check your reservation details in our database?

USER: My name is Samuel Anderson.

ASSISTANT: Thank you. Please wait for a while, let me check your reservation status.

USER: Ok.

ASSISTANT: Sorry, I did not find any reservation by your name in our database.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for connecting us.