You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Mark Garcia from Houston. I have to attend a business meeting in Dallas next week. Can you please help me in flight ticket booking process?

ASSISTANT: Sure, can I know the travel dates please?

USER: Thank you for your positive response, I want to take off on 04/26 and please confirm my return ticket also on 04/28.

ASSISTANT: Could you please provide the airport codes?

USER: I would like to fly from HOU and destination airport is DFW.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: There is a connecting flight in Hawaiian airline, can I book it?

USER: Please book this flight ticket for me.

ASSISTANT: Your ticket has been booked with flight number 1013.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.