You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: As I am a scientist, I want to attend science festival with my students at Charlotte. Can you do the reservation?

ASSISTANT: Sure, I am here o help you out. May I know your travelling dates please?

USER: My journey dates are Dec 26th and Dec 28th.

ASSISTANT: May I know your origin airport code and destination airport code please?

USER: My airport codes are PHX-CLT.

ASSISTANT: May I know your name to proceed further?

USER: Ronald Carter here.

ASSISTANT: Do you prefer a lay by in between your journey?

USER: I need break in my journey.

ASSISTANT: Delta airlines is available in your route with the ticket fare of 300, shall I proceed with the booking?

USER: Go ahead.

ASSISTANT: Your ticket is booked with the flight-1015.

USER: Thank you.

ASSISTANT: Thank you for reaching us.