You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Thompson.

ASSISTANT: Ruth, how can I assist you?

USER: Can you please book a flight ticket from PHL to DTW?

ASSISTANT: Sure, please provide your trip dates.

USER: Sure, I need to travel on dates of 09/15 and 09/17.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure, I will wait for your response but please make sure that connection should be 0.

ASSISTANT: We found a flight with 1 connection by Frontier airlines and ticket costs you 100 in economy class.

USER: I have already told you that connection must be 0 as it's an emergency trip.

ASSISTANT: Sorry, no direct flight is available.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for contacting us.