You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Charles Davis.

ASSISTANT: How can I assist you today?

USER: I would like to meet my grand parents at Denver, please help me in booking a ticket from HOU to DEN.

ASSISTANT: Sure, I will help you. Please tell us your travel dates.

USER: My travel dates are 05/10 and 05/12.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: The Delta airline with flight number 1000 is available having fare as 100 and connection as 1, would you like me to book this flight ticket?

USER: Ok, please confirm with my booking.

ASSISTANT: Davis, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.