You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Daniel Gonzalez. Can you help me in booking the ticket from IAD to LAS?

ASSISTANT: May I know your travelling dates please?

USER: My planning dates are from 04/13 to 04/15.

ASSISTANT: There is a flight with single connection flight, can I proceed for booking in 1003 flight?

USER: That's great, please proceed.

ASSISTANT: Your booking is done in Delta airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.