You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you?

USER: I am Ashley Campbell, there is a event going to be organizes by me in Huston, IAH. Will you help me out in booking my flight ticket with fare of 200 on 12/18?

ASSISTANT: Please share your return date.

USER: 12/20 is my return date.

ASSISTANT: May I Know your boarding point?

USER: My boarding point is LAS.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We found a Hawaiian airline, flight number:1002 and the price is 100.

USER: Ok. Reserve my ticket for Hawaiian airline.

ASSISTANT: May I Know your name?

USER: I already mentioned above.

ASSISTANT: Ok. Your flight ticket has been processed.

USER: Ok. Thank you for assisting me.

ASSISTANT: Thank you for choosing us.