You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: James Lewis here, I would like to travel from DEN to BOS. can you please help me to book a ticket to meet my friend?

ASSISTANT: Sure, can I know your connection limit?

USER: My travelling dates will be on 01/04 to 01/06. I need a connecting flight.

ASSISTANT: Kindly share your price limit.

USER: I can afford up to 5000.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, unfortunately there are no flights found with your essential details.

USER: Not an issue, thank you.

ASSISTANT: Thanks for opting us.