You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: William Moore here.

ASSISTANT: How can I help you?

USER: Can you please book a flight ticket from IAD to IAH?

ASSISTANT: Yes,. Can I know your dates of travelling?

USER: Sure, I need to travel on dates of 09/30 and 10/02.

ASSISTANT: Hold on for a second, I will get back to you.

USER: Sure, take your time.

ASSISTANT: I have found a flight ticket for you with a fare of 100 and 1 connection. Can I proceed to booking?

USER: That's great, please proceed with booking.

ASSISTANT: Ok, your ticket is booked with UA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.