You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to change my recent reservation because my trip dates are got postponed?

ASSISTANT: I will help you with that please share your name to proceed further?

USER: Edward hall here.

ASSISTANT: Please wait for a while.

USER: Sure, take your own time.

ASSISTANT: There is no active reservation found under your name to amend it.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.