You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Dorothy Young. I am planning to visit Museum of Arts  at Houston, could you please help me with booking a flight ticket from BOS to HOU?

ASSISTANT: Sure, let me know your travelling dates.

USER: My trip dates are Jun 1 to Jun 3.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a connecting flight.

ASSISTANT: Is there airlines preference?

USER: No, but I prefer a flight which depart and return in evening.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights available based on your details.

USER: No issue, thank you.

ASSISTANT: Thank you for choosing us.