You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Angela Miller.

ASSISTANT: Yes, Angela Miller.

USER: Can you please be a helping hand to me to book my ticket from DEN to IAD?

ASSISTANT: Sure, help me with your travel dates please.

USER: My preferable journey dates are from 04/18 to 04/20.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight 1003 of AA airlines available for your request dates. Shall I proceed?

USER: Ok, happy to fly in this flight.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.