You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I would like to book a ticket from HOU to DCA, can you please help me out?

ASSISTANT: Sure, when would you like to travel?

USER: I am travelling on these dates May 17th and 19th.

ASSISTANT: Do you have any airline preferences?

USER: I prefer normal-cost airline.

ASSISTANT: May I know your name please?

USER: Robert Jackson here.

ASSISTANT: We found a connecting flight with Delta airline having an economy class seat with flight number 1026. Shall I reserve?

USER: I need single connected flight. Ok, you can proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us.