You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: Nancy Lopez here. My interview got postponed, so I want to reschedule my itinerary dates. Could you help me out?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry Nancy Lopez, no reservation has found under your name to change.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us, have a good day.