You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Sarah Lee, I want to book a flight on 7th May to visit Houston Space Center. Can you book a flight for me?

ASSISTANT: Sure, may I know your depart location?

USER: I will fly from DFW.

ASSISTANT: At Houston which airport do you like to land?

USER: My destination airport is IAH.

ASSISTANT: May I know your travel dates?

USER: I will travel on May 07 and return on May 09.

ASSISTANT: Do you have any specifications?

USER: I need a flight with single connection.

ASSISTANT: We found a flight on your details with airline Southwest, flight number: 1000 and economy class with single drop. Shall I book this ticket?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you.