You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Alexander Lee from Houston.

ASSISTANT: Nice meeting you Alexander.

USER: Thanks, nice to meet you too. I have to go Houston next month, can you help me in booking flight ticket on 07/07?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please provide your origin and destination airport codes for booking?

USER: I want to take off from IAH and destination airport is HOU.

ASSISTANT: Is there any return trip that you are planning to Houston?

USER: Yes, please book my return ticket also on 07/09.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 is provided by UA airlines. Shall I proceed with this?

USER: I am comfortable with this flight, please proceed.

ASSISTANT: Ok, your ticket has been booked in flight number 1023.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us, have a great journey.