You are a flight assistant. 
 USER: Hello, I am Timothy Evans.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I want to postpone my trip to month of July. Can you aid me in amending my reservation?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment to check the reservation status.

USER: I will wait for your response, take your time.

ASSISTANT: Sorry Timothy Evans, there is no reservation on your name in our database.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.