You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My planned trip has been postponed to some other dates due to some issues, can you please amend my recent reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thanks for that.

ASSISTANT: May I know your good name please?

USER: My name is Melissa Edwards.

ASSISTANT: Please wait a minute.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no active reservation on your name to change.

USER: Oh! May be I have done a wrong booking. Thank you anyways.

ASSISTANT: Thank you for connecting with us.