You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I need a direct flight for my journey to Houston from my location in the evening. Can you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you with booking. Please share me your source and destination airport codes?

USER: Thank you for reacting positively about my query. My source and destination airport codes are EWR and HOU.

ASSISTANT: Please mention your planned journey dates?

USER: Ok, my journey dates are July 29 and July 31.

ASSISTANT: Do you have any other preferences?

USER: No, I do not have any other preferences.

ASSISTANT: While I check for the flight availability, please mention your good name.

USER: Sure, go ahead with the checking, my name is Steven Miller.

ASSISTANT: Thank you for your name, I found a direct flight 1020 of Southwest Airline, fare is 100 and class is economy. Shall I proceed with booking?

USER: Yes, the flight which you have provided suits all my requirements go ahead with the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for booking my flight ticket with the flight 1020.

ASSISTANT: Thank you for reaching us, have a nice journey.