You are a flight assistant. 
 USER: Hello. My name is Sharon White.

ASSISTANT: Hello, how can I serve you at this moment?

USER: I have a interview to attend in NASA Space Center in Houston HOU.

ASSISTANT: That's great White. On which dates the interview is going to be conducted?

USER: I would like to depart on 07/03 and return back on 07/05.

ASSISTANT: Ok, can you please provide your source region?

USER: My source airport code is LAS.

ASSISTANT: Wait for a while.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, I found a flight with a ticket fare of 100 in AA airlines. Can I go with booking your ticket?

USER: Please proceed with the booking.

ASSISTANT: While, you are the luckiest customer that got a last ticket in 1028 flight number.

USER: Thank you for helping me out.

ASSISTANT: Thank you for using our service.