You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you today?

USER: I am Emily Wright. Please book a flight ticket to CA-OAK from MA-BOS, for festival celebration.

ASSISTANT: Kindly mention your travel dates?

USER: 02/20 to 02/22 are dates of travel.

ASSISTANT: Do you have any connection limit?

USER: Connections limit 1.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flight found with your given dates.

USER: Thanks for the help.