You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to travel in a normal cost airline, can you please help me out with booking of a flight ticket?

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

USER: Thank you, I want to travel from CLT to DTW.

ASSISTANT: May I know your travelling dates?

USER: My departure is on Jan 25 and please book my return ticket on Jan 27.

ASSISTANT: Is there any connection limit?

USER: I will prefer single connection.

ASSISTANT: May I know your good name?

USER: Sure, my name is Anna Allen.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights running currently due to abnormal weather conditions.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.