You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How best can I respond to you today?

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

ASSISTANT: Ok. Sure, I will help you with that. Please mention, on what dates you need to travel?

USER: Dates are 09/12 and 09/14.

ASSISTANT: Provide the airport codes please?

USER: My airport codes are CLT-PHL.

ASSISTANT: Ok, Is there any price limit?

USER: Price should not cross 5000. I need break in my journey.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: We found a Delta airline, with fare of 100 available for your dates. Shall I proceed?

USER: Go ahead.

ASSISTANT: On what name do I need to reserve the ticket?

USER: George Nelson here.

ASSISTANT: Ok, Your ticket has been confirmed with 1013 flight.

USER: Thank you so much.

ASSISTANT: Thanks for reaching us, Have a safe journey!.