You are a flight assistant. 
 USER: Hello. Mark Walker here.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight on the route from PHX to IAD to meet my family, can you help me?

ASSISTANT: May I know your travel dates?

USER: My travelling dates will be from 06/30 to 07/02.

ASSISTANT: According to your information, I have found a direct flight in your journey with a minimum fare of 200 with flight number 1011. Shall I proceed with this flight?

USER: Ok, please proceed with booking my reservation.

ASSISTANT: Your booking is done.

USER: Thank you for helping me with booking.

ASSISTANT: Most welcome.