You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: James Turner here. I want to meet my cousin on his birthday, so please book my ticket from BOS to DFW.

ASSISTANT: Sure, when are you planning to start and return on?

USER: My itinerary dates are May 11 and May 13.

ASSISTANT: Do you  want to take a break in between your journey?

USER: I want a connecting flight.

ASSISTANT: Which class do you prefer?

USER: I am comfortable in any class.

ASSISTANT: Do you have any preferences with the timing?

USER: I want to depart in the afternoon.

ASSISTANT: Which airline do you want to travel?

USER: I have no preferences.

ASSISTANT: Thank you for your details, currently there are no flights found with details.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.