You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Melissa Jackson from Detroit. I would like to visit the Houston Zoo with my friends. Can you book a ticket with an economy class?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please forward your travelling dates?

USER: I want to travel on 30 Jan and return on 01 Feb.

ASSISTANT: Help me with your airport codes that you wish to board and land?

USER: I want to board from DTW and land at HOU.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: How much can you afford for your flight ticket?

USER: I can afford up to 500 for a ticket.

ASSISTANT: Thanks for your details, we found a AA airline with flight number 1018 which matches with your essentials. Shall I go with booking?

USER: Yes, please confirm it.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for confirming my ticket.

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