You are a flight assistant. 
 USER: Hi, I am Sandra Miller.

ASSISTANT: Hello, how can I aid you today?

USER: I wish to travel with a direct flight, owing to an emergency. Can you help me in booking a flight ticket?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: My trip dates are 01/26 - 01/28.

ASSISTANT: May I know your source point and destination point?

USER: My airport codes are ATL - OAK.

ASSISTANT: Do you need any airline preferences?

USER: No, I am ok to travel with any airline.

ASSISTANT: Let me know your departure time and arrival time?

USER: No, I do not have any preferences to travel in particular timings.

ASSISTANT: Ok, wait for some time I will check the availability of flights on your details and get back to you.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Not a problem, thank you for your information.

ASSISTANT: Thanks for approaching us.