You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Larry King.

ASSISTANT: Nice meeting you Larry.

USER: I want to visit Houston next month, can you please book a flight ticket from San Francisco?

ASSISTANT: Sure, I am oblige to help you. Can you please provide your preferable dates of travelling?

USER: Thanks, my departure date is 07/19 and please book my return ticket also on 07/21.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I want to fly from SFO airport and destination airport is HOU.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 200 from Hawaiian airlines. Is it ok for you?

USER: Please confirm this flight ticket for me.

ASSISTANT: Ok, your reservation has been done with flight number 1015.

USER: Thank you for your help.

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