You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I am Emily Johnson, I need to book a flight ticket with my name to Los Angeles to attend a conference with our clients over there in the month of April. Can you assist me with that?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you for reacting positively about my query.

ASSISTANT: May I know on which dates would you like to book your flight ticket?

USER: I am going to travel from Apr 29th to May 01st.

ASSISTANT: Can you please let me know your take off airport code?

USER: Sure, my take off airport code is IAD.

ASSISTANT: Do you prefer any stopover in between journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Sorry we did not find any flights matching your journey dates.

USER: No problem with that, I will go with another resources to reach my destination point. Anyways thank you for the information.

ASSISTANT: Thank you for choosing us.