You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this Liberty travels agency? I am Angela Williams.

ASSISTANT: Yes, how can I help you?

USER: As I heard it is one of the best agency in guiding the customers, can you book a flight for me?

ASSISTANT: Yes, can you provide me your airport codes and travel dates?

USER: I want to book a ticket from San Francisco-SFO for attending workshop in Houston-IAH. My departure date is 07/24 and return from Houston on 07/26.

ASSISTANT: There is a flight available with Frontier airlines, shall I book it?

USER: If the connection limit is 1, proceed for booking.

ASSISTANT: Yes, your ticket is confirmed.

USER: Thanks for your help.

ASSISTANT: You are welcome.