You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Karen Evans, I want to book a flight for round trip to Houston, IAH. Can you book a connecting flight for me?

ASSISTANT: Ok, may I know your travelling dates?

USER: I will fly on Apr 26 and return on Apr 28.

ASSISTANT: Here is a connecting flight with fare 100 and 1008 as flight number providing ticket in economy class. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for helping me.