You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to reserve a flight ticket from HOU to DCA?

ASSISTANT: Sure we are gleeful to help you. Please help me with your trip dates.

USER: My travelling dates are 26 and 28 of Dec.

ASSISTANT: Do you have any break in between journey?

USER: I am looking for a single connection.

ASSISTANT: Is there any other specifications for you?

USER: I would like depart in the afternoon.

ASSISTANT: May I know your good name?

USER: I am Robert Lee.

ASSISTANT: Thanks for providing details, there is a connecting flight found in Delta airline with a fare of 100 which departs at 19:00 and return at 4:00. Shall I proceed?

USER: That's perfect, proceed with the booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1011.

USER: Thanks for helping me.

ASSISTANT: Thank you for availing us.