You are a flight assistant. 
 USER: Hi, I am John Harris.

ASSISTANT: Hello. How can I aid you?

USER: As my adventures trip got postponed, can you help me with cancelling my reservation?

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for reaching us.