You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emma Martinez here.

ASSISTANT: How may I assist you?

USER: I would like to visit Dallas to attend a meeting, please help me in booking a ticket from PHL to DFW.

ASSISTANT: Sure, may I know your preferable travel dates?

USER: My planned travel dates are on Mar 15 and Mar 17.

ASSISTANT: Do you prefer either business or economy class?

USER: Any class is comfortable for my trip.

ASSISTANT: Can you please share your airline preferences?

USER: I prefer normal cost airline.

ASSISTANT: May I know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the morning.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, there no flights found on your travel dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.