You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Andrew Campbell want to attend cousin's marriage in Phoenix, can you book a ticket with price under 5000?

ASSISTANT: Sure, can you mention your airport codes?

USER: Sure, I would like to travel from BOS to PHX.

ASSISTANT: May I know your travel dates?

USER: Yes, my preferred dates are 06/30 and 07/02. Please check for 1 connection flight.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no flight found with your requirement.

USER: Ok, no issue. Thank you.

ASSISTANT: Have a good day.