You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Please help me with booking ticket from DCA to HOU.

ASSISTANT: Sure, please share your planned trip dates?

USER: Ok, my travel dates are June 05 to 07.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Let me know your class preference?

USER: I don't have.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your name?

USER: Sure, I am Helen Nelson.

ASSISTANT: American airlines flight- 1026 of price 100 with connection in economy class matches your given details, shall I proceed?

USER: Yes, please.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.