You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: David Campbell here.

ASSISTANT: How can I help you today?

USER: I am willing to book a flight ticket with a single connected flight to Houston in the month of October. Can you please aid me to book a flight ticket?

ASSISTANT: Sure, I can help you with that. May I know your travel dates for booking flight ticket?

USER: Thank you. My travel dates are 10/19 and 10/21.

ASSISTANT: Can you please mention your preferable airport code names?

USER: Sure, my origin airport code is MSP and destination airport code is HOU.

ASSISTANT: Ok, please wait a moment, I will check flight availability.

USER: Ok, sure I will wait for your response.

ASSISTANT: I have found a flight in this route, airline is Southwest and flight number is 1018. Are you comfortable with this flight?

USER: Yes, please proceed.

ASSISTANT: Your flight ticket is booked successfully.

USER: Thank you for your quick response.

ASSISTANT: Thank you for reaching us, have a good day.