You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Here Carolyn Martinez.

ASSISTANT: How can I assist you?

USER: I am a doctor and I have to take care of an emergency case in my new hospital, so I need an immediate help in booking a flight on August month. Can you help me in that process?

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

USER: Thank you and I would like to move that place on 08/06 and return back after the completion of work on 08/08.

ASSISTANT: Could you please provide the airport codes?

USER: Sure, my perspective airport codes are from LAS to ORD.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there are no flights available on your dates.

USER: Ok, no problem. I can ask my friend to assist me to reach my location. Thank you.

ASSISTANT: Thank you for approaching us.

USER: Welcome.