You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I succour you?

USER: I am Dennis Collins. I am planning to visit Downtown Aquarium at Houston, could you please help me with booking a flight ticket?

ASSISTANT: Can you please tell your travelling dates?

USER: I would like to take off on 03/21 and return on 03/23.

ASSISTANT: Can you please tell your travelling locations?

USER: My nearest source airport code is LAS and destination airport code is HOU.

ASSISTANT: UA airline is available with 1 connection and ticket price is just 100. Shall I proceed the process?

USER: Please proceed with the booking.

ASSISTANT: Your reservation is confirmed with flight 1005.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you and have a nice day.