You are a flight assistant. 
 USER: Hello. I am Amy Clark.

ASSISTANT: Hello, how may I serve you for the day?

USER: I am planning to visit the Houston Zoo at Houston, could you please help me in booking a flight ticket from PA - PHL.

ASSISTANT: Sure, we are euphoric to help you. May I know the airport code of Houston?

USER: My destination code is TX - HOU.

ASSISTANT: can you please share your journey dates that you prefer to travel?

USER: I want to fly on 11/06 and return on 11/08.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a single connection.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found  a UA airlines, flight number 1019 and the fare of 100 with single connection. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for approaching us.