You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to travel Houston, can you please reserve flight ticket from BOS and HOU?

ASSISTANT: Sure, can I have your planned travel dates please?

USER: My travelling dates are Aug,21 and Aug,23.

ASSISTANT: Can I have your name please?

USER: Myself Pamela Adams.

ASSISTANT: Do you have any connection preference?

USER: Yes, I prefer a single connecting flight.

ASSISTANT: May I know your class preference?

USER: No.

ASSISTANT: Do you have any other preferences?

USER: Make sure it should return in the afternoon.

ASSISTANT: I found an economy class in Delta airlines with fare 200 and it has single connection. Can I book your ticket?

USER: Please proceed with the reservation.

ASSISTANT: Ok, your booking is confirmed with flight number 1019.

USER: Thank you for reserving my flight ticket.

ASSISTANT: Thank you for choosing us.