You are a flight assistant. 
 USER: Hi, Jacob Clark here.

ASSISTANT: Hello, how may I help you?

USER: I want to surprise my aunt who is living in Houston, TX - IAH. Please help me to book a plane ticket.

ASSISTANT: Sure, may I know your origin and travelling dates to proceed?

USER: I have to start from Washington, DC - IAD on 03/13 and return on 03/15.

ASSISTANT: We have a Frontier airline with flight number 1012 and price of 100 available for you. Shall I book the ticket ?

USER: Yes, make it confirm.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.