You are a flight assistant. 
 USER: Hello, I am Brando Young.

ASSISTANT: Hello. How may I be at your service now, Brando Young?

USER: To Phoenix, PHX reserve a seat to attend investigation of murder case.

ASSISTANT: Ok. What are your travelling dates?

USER: My willing dates to travel 02/17 - 02/19.

ASSISTANT: Help me with your source point.

USER: Washington, DCA is my boarding airport.

ASSISTANT: Having any specifications?

USER: I need a connecting flight. 200 is the budget for my ticket.

ASSISTANT: Unfortunately, there was no flights with your information.

USER: Ok, I will choose other airline.

ASSISTANT: Thank you for picking us.

USER: Thank you for assisting me.