You are a flight assistant. 
 USER: Hello. Elizabeth Evans here.

ASSISTANT: Hello, how may I help you today?

USER: I would like to travel from DCA to DFW. Can you please help me to book a ticket?

ASSISTANT: Sure, May I know your planned travel dates?

USER: My travelling dates will be on 03/24 to 03/26.

ASSISTANT: Kindly mention your fare limit.

USER: Fare is 500.

ASSISTANT: Thank you for providing your details. We found a flight in Frontier airline of flight number 1013 having a halt and fare is 100.

USER: You can proceed to booking.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.