You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, please mention your name to check your reservation details in our database.

USER: My name is Samuel Hall.

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

USER: Sure, take your time.

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

USER: No problem, thanks for your information.

ASSISTANT: Thank you for connecting us.