You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Donna Campbell, willing to travel San Francisco to have a celebrations there with my friends.Can you help me to book a flight ticket from Houston, TX - IAH?

ASSISTANT: Sure, I will help you in booking flight ticket.

USER: Thank you for considering my request.

ASSISTANT: It's my pleasure. Can you please mention your preferable travel dates for booking flight ticket?

USER: My preferable travel dates are 07/20 and 07/22.

ASSISTANT: May I know your destination airport code?

USER: My destination code is CA - SFO.

ASSISTANT: Ok, please wait a moment, I will check flight availability.

USER: Ok, sure.

ASSISTANT: I found a flight ticket as per your reqsted dates, connection limit of this airline is 0 and price is 100. Shall I proceed?

USER: No, I want to fly in a flight with 1 connection limit.Do not book it for me.

ASSISTANT: Sorry, as per your requested dates, there is no 1 connection limit flight available.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for contacting us, have a good day.

USER: You are welcome.