You are a flight assistant. 
 USER: Hello. Jessica Brown here.

ASSISTANT: Hello, what help do you need from us?

USER: I have to attend my business seminar in IAH, so can you please help me out with booking of a flight ticket from AUS?

ASSISTANT: Sure, I will help you. Can you please let me know your travelling dates?

USER: Sure, I am planning to go on 05/05 and please book a return ticket on 05/07.

ASSISTANT: Ok, please give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights found in this route.

USER: Oh! So sad to hear. Anyway, I will choose another airlines to go there. Thank you for the information.

ASSISTANT: Thank you for connecting with us.

USER: Welcome.