You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight from HOU to BOS?

ASSISTANT: Sure, when do you want to travel?

USER: I want to travel in the month of Mar 12 and 14.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: I need a direct flight for this trip.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, There were no flights found with your given requirements.

USER: Ok, no issues.

ASSISTANT: May I know your name?

USER: Patricia Lopez here.

ASSISTANT: Thank you for approaching us.

USER: Thanks for the information.

ASSISTANT: Have a nice day.