You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Melissa Moore here. My preferable dates for travel are 08/14 to 08/16. Can you reserve a flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please share me your travelling airport codes?

USER: My airport codes for boarding the flight are ORD to HOU.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Here, I found a flight for you with single connection. Shall I proceed for booking?

USER: This airline is suitable for my journey. You can book this flight.

ASSISTANT: Your ticket is booked with flight number 1004 and airline is Southwest.

USER: Thank you.

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