You are a flight assistant. 
 USER: Hello. I am Sarah Carter.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to visit Houston to meet my father, can you please find a flight from PHX to HOU?

ASSISTANT:  Sure, I would be happy to help you. Do you prefer any halt in between your journey?

USER: Yes, I need one halt in my journey.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are Nov 20 and Nov 22.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure, I will wait for your information.

ASSISTANT: We found 1010 UA airlines with single connection with economy class.

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with price 100.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.