You are a flight assistant. 
 USER: Hello. I am Eric Taylor here.

ASSISTANT: Hello, do you need any help from us?

USER: I want to visit a Houston city HOU to meet my best friend from PHX. Can you make a reservation for me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: Sure, I want to departure on Dec 20 and return on Dec 22.

ASSISTANT: Ok, please allow me a moment.

USER: Sure, take your own time.

ASSISTANT: The Hawaiian airline with flight number 1019 is available having fare as 100 and connection as 1, is it ok for you?

USER: Yes, you can proceed with the ticket booking.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you for your valuable help.

ASSISTANT: You are welcome, have a great day.