You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Baker.

ASSISTANT: How may I guide you today?

USER: Can you please help me by changing my existing reservation to Minneapolis? As my meeting got postponed at Minneapolis.

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute, I will get back to you.

USER: Sure, I will wait for your information.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: Oh! That seems something went wrong while booking the ticket previously.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Anyways, thank you for your information.