You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, please provide me your travel dates.

USER: Dates are 04/21 and 04/23.

ASSISTANT: May I know your airport codes?

USER: My airport codes are DCA-ATL.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need break in my journey.

ASSISTANT: May I know your good name?

USER: Catherine Martin here.

ASSISTANT: Sorry, no flights found with your given details.

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

ASSISTANT: Thank you for opting us.

USER: Thank you.