You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to travel from PHX to IAD for attending a seminar.Could you please help me for booking a ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: The journey dates are from 06/06 to 06/08.

ASSISTANT: Ok, wait a moment.

USER: Ok.

ASSISTANT: Sorry to say this, there is no flight found for you.

USER: That's fine, thank you for your help.

ASSISTANT: May I know your name?

USER: My name is Janet Hernandez.

ASSISTANT: Ok, thank you for choosing us.

USER: You are welcome.