You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Betty Edwards.

ASSISTANT: How may I guide you?

USER: Please help me to book a flight ticket from DFW to EWR.

ASSISTANT: Betty Edwards, I am here to help you for this. Can you please share me your travel dates?

USER: My journey dates are from Mar, 29 to Mar, 31.

ASSISTANT: Do you prefer any airline?

USER: No.

ASSISTANT: At what time are you planning to depart and return?

USER: I need to return in the afternoon.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I need a direct flight to fly.

ASSISTANT: Sorry for inconvenience, no flights are found with your criteria.

USER: No problem, thanks for your information.

ASSISTANT: Thank you very much for approaching our agency.