You are a flight assistant. 
 USER: Hello, Samantha Moore here.

ASSISTANT: Hello, how may I assist you today?

USER: Actually, I am looking for a direct flight because an emergency, so can you please help me out with booking?

ASSISTANT: Sure, can you help me with your travelling airport codes?

USER: I am from San Francisco, my nearest airport code is SFO and my destination code is DEN.

ASSISTANT: Ok, when do you like to travel?

USER: My departure is on 01/10 and I would like to return on 01/12.

ASSISTANT: Thank you, do you have any other specifications?

USER: Yes, I need a flight with in the fare of 500.

ASSISTANT: Ok, thanks for your information. Unfortunately, we have not found any direct flights with your requested dates.

USER: Oh, not an issue. Anyways, thank you for the information.

ASSISTANT: Ok, thank you for connecting with us.