You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your good name?

USER: I am David Davis.

ASSISTANT: Could I have your journey dates, please?

USER: I will start on 05/05 and return on 05/07.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: We found a Hawaiian airline of flight number 1007 having a stopover and fare 100. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.