You are a flight assistant. 
 USER: Hi, I am Brandon Taylor.

ASSISTANT: Hello, how may I help you?

USER: I need to book a ticket to meet my sister who is working at Google in Washington DC. Could you please help me in booking a ticket from PHL?

ASSISTANT: Sure, can you please help me with travel dates?

USER: Sure, my travelling dates are 11/17 and return on 11/19.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connection.

ASSISTANT: May I know your destination?

USER: My destination code is IAD.

ASSISTANT: Kindly, share your price limit?

USER: I can bare up to 1000.

ASSISTANT: Please wait for a while, I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that unfortunately there were no flights available by the given details.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for choosing us.