You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to attend music concert at OAK, can you please help me with booking a flight ticket from BOS?

ASSISTANT: Sure, I am here to help you for this. When are you planning your trip?

USER: I would like to take off on July 11 and return on July 13.

ASSISTANT: May I know your name please?

USER: My name is David Lewis.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart during morning time and return during afternoon time.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you very much for approaching our agency.

USER: You are welcome.