You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to visit the NASA space centre which is located in Houston, HOU. Can you avail me to book a flight ticket?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My planned journey dates are Mar 02 and 04.

ASSISTANT: Do you have any connection limit?

USER: I need a break in my journey.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your good name?

USER: Alexander Rodriguez here.

ASSISTANT: May I know your origin airport code?

USER: I want to board from Washington, IAD.

ASSISTANT: United airlines flight- 1011 of price 100 with connection in economy class matches your given details, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thanks for your kind service.

ASSISTANT: Thank you for reaching us.