You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Michelle Hernandez.

ASSISTANT: How may I aid you?

USER: I want to book a flight ticket from DCA to DFW. Please help me in booking a flight ticket.

ASSISTANT: Sure, help me with the trip dates?

USER: My journey dates are from 07/20 to 07/22.

ASSISTANT: Do you have any preferences?

USER: I need a halt in between my journey.

ASSISTANT: We found a flight in an airline United with 1002 number having a single connection price of 100. Shall I proceed to book?

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been reserved in an economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.