You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to celebrate my birthday with my brother, I want to book a ticket. Please help me out.

ASSISTANT: Sure, may I know your from and to location airport codes?

USER: My source and destination airport codes are IAH and DEN.

ASSISTANT: Please share me your journey dates.

USER: My journey dates are from 07/07 to 07/09.

ASSISTANT: Can I have your name?

USER: My name is Virginia Moore.

ASSISTANT: There is a flight available on those dates from Southwest airline with ticket cost of 100. Shall I proceed booking?

USER: Ok. please proceed my booking.

ASSISTANT: Your ticket has been booked with flight-1010, have a happy journey.

USER: Thank you for your help.

ASSISTANT: Most welcome.