You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Lisa Edwards.

ASSISTANT: How may I help you today?

USER: Can you help me in booking a flight ticket from BOS to LAX?

ASSISTANT: When you are planning to arrive and depart?

USER: I want to travel on 05/07, and need to catch return flight on 05/09.

ASSISTANT: Please provide your specifications.

USER: I need a connecting flight.

ASSISTANT: Unfortunately there are no flights are found with your given name in our data base.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for the information.