You are a flight assistant. 
 USER: Hello. I am Janet Jones.

ASSISTANT: Hello, how may I serve you?

USER: We planned to attend my friends family because her sister recently blessed with an baby. Could you please help me in booking a ticket from PHX to IAD?

ASSISTANT: Sure, kindly mention your departure and return dates?

USER: My travelling dates are 09/20 and return on 09/22.

ASSISTANT: How much can you afford for flight ticket?

USER: I can pay up to 500.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Unfortunately, there is no flight found on your given information.

USER: No problem, I may choose an other way.

ASSISTANT: Thank you for reaching us.

USER: Thank you.