You are a flight assistant. 
 USER: Hi, Kenneth Young here.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to travel to Dallas & fort Worth to enjoy river rafting with my college friends on 06/02. Can you make a reservation with a single connection?

ASSISTANT: Sure, please provide me your return date?

USER: Sure, my arrival date is on 06/04.

ASSISTANT: May I know your budget for flight reservation?

USER: Sure, it will be helpful if price limit is 5000.

ASSISTANT: Could you please know from where you want to start and end your journey?

USER: Sure, I would like to start from BOS to DFW.

ASSISTANT: Please wait a moment, I will let you know the information.

USER: Sure.

ASSISTANT: We are very sorry to inform, there is no flight found on your given dates.

USER: Ok, no worries at all.

ASSISTANT: Thank you for availing us.

USER: Thanks for your help.