You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Samantha Thompson here.

ASSISTANT: How can I aid you at this moment?

USER: My wedding got postponed, so I want to reschedule by itinerary dates. Could you help me out?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is no previous reservation available in your name Samantha Thompson.

USER: No problem, thank you for helping me.

ASSISTANT: You are welcome.