You are a flight assistant. 
 USER: Hello, I am Shirley Allen.

ASSISTANT: Hello, how can I guide you?

USER: I would like to go to Houston Zoo in Houston, so could you aid me in booking a flight ticket to Houston?

ASSISTANT: Sure, can you share your trip dates?

USER: Sure, I would like to go on 03/05 and return back on 03/07.

ASSISTANT: May I know your airport codes for booking?

USER: My source and destination airport codes are LGA and IAH.

ASSISTANT: Give me a minute.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight with number 1011 in airline Frontier, the fare is 100.

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.