You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

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

ASSISTANT: Sure, could you please share me your journey locations?

USER: My airport codes are MSP-CLT.

ASSISTANT: May I know your name please?

USER: Karen Scott here.

ASSISTANT: Kindly mention your planned dates?

USER: Dates are 08/11 and 08/13.

ASSISTANT: How much can you spend for flight ticket?

USER: Price should not cross 500.

ASSISTANT: Unfortunately there is no flights found with your provided information.

USER: No problem, I will check with another airline.

ASSISTANT: Thank you for choosing us.

USER: Thank you.