You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Rachel Miller, planning to visit Washington, IAD. Can you please book me a ticket from Phoenix, PHX?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My departure date is on 03/24 and return date is on 03/26.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Sure, I will wait for your response.

ASSISTANT: Ok, there is a flight 1021 in Frontier airline matching your details with price 100. Shall I proceed?

USER: Please reserve my ticket with this airlines.

ASSISTANT: Ok, your booking is done.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome.