You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to travel from San Francisco, CA - SFO to meet my manager at Washington, DC - DCA . Can you help me with the booking?

ASSISTANT: Sure, may I know your journey dates?

USER: They are planned on 05/19 and 05/21.

ASSISTANT: Ok, Is there any price limit?

USER: 1000 is my price limit.

ASSISTANT: Ok, please specify your name.

USER: Alexander Edwards is my name.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for your time, we found a flight with a halt in 1019 AA airline and the fare is 100.

USER: You can proceed for booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for availing us.