You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to travel on these days that is on Apr 07 and return on Apr 09. Can you make a reservation for me?

ASSISTANT: May I know your airport codes?

USER: Ok, my airport codes are from ATL to IAD.

ASSISTANT: May I know your name in the meanwhile?

USER: Yes, I am Jack Adams.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any other preference.

ASSISTANT: Frontier airlines providing service to you with single connection, shall I book it?

USER: Ok, you can proceed with the ticket booking.

ASSISTANT: Ok, booking is done with the flight-1003 in economy class.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us.