You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Emma Turner.

ASSISTANT: How can I assist you?

USER: I want to attend Earth and Nature Festivals which is going to be held at Houston, TX - HOU. Can you please hold me a flight ticket on 01/04?

ASSISTANT: Sure, please provide your price limit?

USER: I can afford up to 1000 only.

ASSISTANT: When you are willing to return from Houston?

USER: I intend to return on 01/06.

ASSISTANT: Can you please mention your origin airport code?

USER: I wish to board from San Francisco, CA - SFO.

ASSISTANT: Please wait for a second, I will revert to you with the flight details.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is a connecting flight from Southwest airline of fare 200 and flight number 1016. Shall I proceed to book?

USER: Please reserve.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for your help.

ASSISTANT: Thanks for opting us.