You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I render you today?

USER: Due to heavy rains cricket match was postponed, so I need to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for your response.

ASSISTANT:  On what name, do I need to check your reservation status?

USER: Sarah Mitchell, is my name.

ASSISTANT: Please wait a while.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, Thanks for your kind information.

ASSISTANT: Thank you for reaching us.