You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Kevin Clark, can you help me to book a flight on 06/23?

ASSISTANT: Ok, may I know your return date?

USER: I would like to return on 06/25.

ASSISTANT: Can you please mention your travelling airport codes?

USER: My airport codes are SEA and EWR.

ASSISTANT: There is a flight ticket with fare 100 and 1023 as flight number.

USER: Proceed with booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.