You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Thompson.

ASSISTANT: How can I assist you today?

USER: Can you help me booking a flight ticket from DFW to HOU?

ASSISTANT: Please share your trip dates?

USER: I will start on 03/17 and return 03/19.

ASSISTANT: Let me know your desired journey timings?

USER: I am comfortable with any flight.

ASSISTANT: may I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: Do you have any airline preference?

USER: I am looking for a normal cost.

ASSISTANT: Sorry, no flights available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for connecting with us.