You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I have to change my reservation  due to my planned event got postponed. So please help me with that.

ASSISTANT: Sure, I am happy to help you in changing the ticket details once I have found your reservation. Can I know your full name please?

USER: Thank you for that. Please check the reservation with my name Laura Johnson.

ASSISTANT: Ok, please give me a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to intimate you that, I have not found any reservation on your name to change the ticket details.

USER: Oh! It may not be booked properly due to server issues while booking. Anyway, thank you for your time.

ASSISTANT: You are welcome. Thank you for consulting us.

USER: Most welcome.