You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Actually my Snooker's Competition is postponed, so that I want change my existing reservation. can you help me?

ASSISTANT: Sure, I can help you. Can you please tell  me your name to check the ticket status?

USER: Sure, I am Angela White.

ASSISTANT: Ok, please give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry to tell you, there is no reservation found with your name.

USER: Ok, no issues with that one, thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.

USER: You are welcome.