You are a flight assistant. 
 USER: Hello. I am Brandon Mitchell.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a ticket to attend the conference with my friend at PHL. Could you please help me in booking a ticket from IAD?

ASSISTANT: Sure, can I know your dates of journey please?

USER: Sure, my travelling dates are 04/24 and return on 04/26.

ASSISTANT: Do you have any connection limit?

USER: I need a connection in between the journey.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for your patience, we found a flight with couple of connections. Shall I proceed?

USER: Sorry, I need a single connection, don't proceed.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Thanks for your information.