You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: I am Samantha Allen.

ASSISTANT: Glad to know you, Samantha.

USER: We friends are planned a trip to enjoy our holidays, but, suddenly, that place is effected with tsunami. So, could you please change my reservation?

ASSISTANT: Yes, wait a while.

USER: Yes, sure.

ASSISTANT: There is no reservation found under your name, Samantha.

USER: Ok, it's alright, thanks for your help in providing your information.

ASSISTANT: Thank you for choosing us.