You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Due to heavy rains the cricket match got postponed, so I need to change my existing reservation. Can you help me in amending the reservation?

ASSISTANT: Sure, may I know your good name please?

USER: Ok, my name is Thomas Parker.

ASSISTANT: Just give me a moment, let me check and revert to you.

USER: Sure.

ASSISTANT: We did not find any active reservation on your provided name in our data base.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.