You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward Thompson.

ASSISTANT: How can I aid you at this moment?

USER: I am planning to visit Downtown Aquarium at Houston, could you please help me with booking a flight ticket from LAS to HOU?

ASSISTANT: Sure, I will aid you with that. Can you please mention your preferable travel dates?

USER: I would like to depart on Feb 20th and return on Feb 22nd.

ASSISTANT: Do you have any another specifications?

USER: I need a flight with ticket fare 200 or less.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: There is a AA airline flight available with connection limit 1 and fare is 100, shall I confirm this economy class flight?

USER: Yes, please confirm the booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1016.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: You are welcome Edward Thompson.