You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I made an earlier reservation to attend a get together party with college friends, due to some issues in college it got postponed. Can you please change my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you help me with your name to check in airline database?

USER: Sure, this is Christine Collins, please check the reservation status on my name.

ASSISTANT: Sure, can you please wait for a while until I get you back.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting.

USER: My pleasure.

ASSISTANT:  Christine sorry to say, there is no reservation found on your name in our airline database.

USER: Ok, not an issue. May be reservation not done properly due to server issues. Anyway thank you for your valuable information.

ASSISTANT: Ok, thank you for opting us.