You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Eric Thompson. I need to book a flight from CLT to IAH. Could you help me?

ASSISTANT: On which dates would like to travel?

USER: My preferable dates are from 05/16 to 05/18.

ASSISTANT: How much you can pay for this ticket?

USER: My price limit is 1000.

ASSISTANT: We found a flight on your details with airline Spirit, flight number: 1004. Shall I book this ticket?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you.