You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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: Please provide your journey dates?

USER: My journey dates are Oct 25 and 27.

ASSISTANT: Would you let me know your boarding airport code?

USER: I want to board from Dallas & Fort Worth, DFW.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any time concern?

USER: No, but I need a connecting flight.

ASSISTANT: May I know your name?

USER: Gregory Robinson here.

ASSISTANT: Found ticket with Spirit airlines for price 100. Shall I book a ticket?

USER: Please make it confirm.

ASSISTANT: Ticket is booked having flight number 1000 which departs at 3:00 hours and arrives at 4:00 hours.

USER: Thanks for your extreme support.

ASSISTANT: Thank you.