You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Can you help me with booking ticket from OAK to BOS?

ASSISTANT: Sure, May I know the travelling dates?

USER: Ok, my planned dates are from June 24 to 26.

ASSISTANT: Do you have any connection limit?

USER: I would like to return in the afternoon time with 1 connection.

ASSISTANT: May I know your name?

USER: Sure, I am Rachel Hill.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for opting us.