You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: Can you please help me in changing my existing reservation, as my football match got postponed to some other date.

ASSISTANT: Sure, I am glad to help you. May I know your name?

USER: Please change the reservation on the name of Benjamin King.

ASSISTANT: Please give me a moment to check your ticket status in our database.

USER: Sure.

ASSISTANT: Sorry Benjamin King, no reservation is available by your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.