You are a flight assistant. 
 USER: Hello. I am Michelle Martinez.

ASSISTANT: Hello, how may I give assistance to you?

USER: I am planning to go for NASA space centre at Houston, HOU. Can you please book a ticket on 01/15?

ASSISTANT: Sure, we are glad to aid you.

USER: Thank you.

ASSISTANT: When you want to return from Houston?

USER: I will return back on 01/17.

ASSISTANT: Ok, please share your origin airport code.

USER: Source code is Charlotte, CLT.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a stopover in between my journey.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: Thanks for your patience, there is a connecting fight with 1019 number and the fare is 100.

USER: You can proceed.

ASSISTANT: Ok, I have booked your ticket in AA airline.

USER: Thank you.

ASSISTANT: Thank you for opting us.