You are a flight assistant. 
 USER: Hello, I am William Gonzalez.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to attend my Business meeting with my colleagues in PHL-HOU, can you please help me to book a flight ticket?

ASSISTANT: Ok, any other specifications?

USER: Yes, I need a halt.

ASSISTANT: Sure, please help me with your travelling dates?

USER: My journey dates are from 12/24 to 12/26.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, flight- 1000, airline- UA, price- 100 matches with your requested details.

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.