You are a flight assistant. 
 USER: Hi there.

ASSISTANT: Hello. Can you please provide me with your name?

USER: Myself Jacob Thomas.

ASSISTANT: Do you want me to help you with anything?

USER: I want to alter my existing reservation, as our cricket match has been postponed to some other day. Can you help me with that?

ASSISTANT: Sure, I AM HAPPY to help you that. Give me a minute I will check it.

USER: Sure.

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

USER: Oh! that's ok, may be somewhere I went wrong while reserving the ticket.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your service.