You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Dennis Harris here.

ASSISTANT: How can I aid you?

USER: Can you help me to make a flight reservation from HOU to DTW?

ASSISTANT: Sure, I am here to help you. Please provide me your travel dates.

USER: My trip dates are 05/31 and 06/02.

ASSISTANT: Ok, I will check for the available flights and let you know.

USER: Sure, take your own time.

ASSISTANT: There is a flight available with UA airlines and the ticket price is 200 only. Shall I book the ticket for you?

USER: You can proceed.

ASSISTANT: Dennis, your ticket is booked and your flight number is 1000.

USER: Thanks for your help and information.