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

ASSISTANT: Hello, how can I serve you today?

USER: I need to book a ticket to visit the campbell Exhibition in Boston BOS. Could you please help me in booking a ticket from EWR?

ASSISTANT: Sure, please help me with your destination airport code?

USER: I already mentioned.

ASSISTANT: Ok, let me know what are your planned journey dates?

USER: My travelling dates are 11/23 and return on 11/25.

ASSISTANT: Ok, any other requirements?

USER: Price should be below 500.

ASSISTANT: Ok, please wait for a while i will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting,. No flights found with your requested details.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for connecting with us.