You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen Adams.

ASSISTANT:  Stephen Adams. How can I help you?

USER: I am planning to visit New England Aquarium at Boston, could you please help me with booking a flight ticket from LAX to BOS?

ASSISTANT: May I know your journey dates?

USER: I would like to depart on Oct 15th and return on Oct 17th.

ASSISTANT: Is there any time concern?

USER: Make sure that my depart time is afternoon.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Are there any connecting limitations?

USER: I am looking for a connecting flight.

ASSISTANT: Any more preferences you want to avail?

USER: No, thank you for asking.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: I regret to inform that there are no flight on your route according to your requirements.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for approaching us.