You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Emma Johnson. Can you book a ticket for me?

ASSISTANT: Sure, can you please provide the travelling details?

USER: My location codes are from HOU to DCA.

ASSISTANT: Please provide the dates of travel?

USER: My preferable dates are from 10/10 to 10/12.

ASSISTANT: Ok, please wait for a minute and I will be back with the flight details.

USER: Ok.

ASSISTANT: Thanks for waiting. There is a flight 1003 with JetBlue airlines. Shall I confirm the ticket?

USER: Great, book a ticket for me.

ASSISTANT: Ok Emma, your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.