You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jack Nelson here.

ASSISTANT: Jack, how can I help you?

USER: I would like to travel from IAD to SEA.Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I can help you. May I have the dates please?

USER: I will depart on 02/05 and return on 02/07.

ASSISTANT: I found a flight with 1027 with UA airlines, can I proceed to book?

USER: Please proceed.

ASSISTANT: Ok, your ticket has confirmed. Have a great day and happy journey.

USER: Ok. Thank you.

ASSISTANT: You are welcome.