You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Clark.

ASSISTANT: How can I help you, Clark?

USER: I am planning to meet my friend's in Houston.Can you please book a ticket for me?

ASSISTANT: Sure, please provide me your preferred journey dates.

USER: I would like to travel on 07/17 and return on 07/19.

ASSISTANT: May I know your trip airport codes please?

USER: My airport codes are DFW  to IAH.

ASSISTANT: Please give me a minute.

USER: Sure, take your own time.

ASSISTANT: Kathleen, I found a flight with price 100 and it has 1 connection. Shall I book the ticket?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is confirmed with Delta airlines and the flight number is 1026.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a safe journey.