You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I help you?

USER: I want to visit Houston, can you book a ticket please?

ASSISTANT: Ok, sure can you please tell me your travelling airport codes?

USER: I want to book a ticket from DTW to IAH.

ASSISTANT: Can you please tell me your travelling dates?

USER: My travel dates are 04/06 and 04/08. My name is Edward Thompson.

ASSISTANT: As per your details there is a flight for you with price 200 and flight number 1010.

USER: Ok, book it.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for booking a ticket for me.

ASSISTANT: Thank you for contacting us.