You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: My interview has been postponed, so I want to reschedule my itinerary dates.

ASSISTANT: Ok, I can help you. May I know your name?

USER: Barbara Martin here.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time, We didn't  found any reservation by this name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.