You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to visit IAD along with my friends, can you search a flight for us? The airport codes are PHX to IAD.

ASSISTANT: Sure, which dates that your preferring your journey? Ok, can I have your dates?

USER: We are planning to travel on 04/23 and return on 04/25.

ASSISTANT: For booking may I know your name?

USER: Sandra Allen here.

ASSISTANT: Allen, there is a flight matching to your information provided.

USER: You can book it.

ASSISTANT: The flight number is 1019 with a connection 1, can I proceed? Allen, you ticket is confirmed, have a happy journey.

USER: Thank you.

ASSISTANT: You are wecome.