You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please find a flight which has normal cost airline and book a flight ticket to meet my parents?

ASSISTANT: Sure, I am here to help you. Kindly share your travel dates.

USER: July 31 and Aug 2 are my travelling dates.

ASSISTANT: May I know your airport codes?

USER: Sure, my travelling airport codes are AUS and BOS.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a lay by in between the journey.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: No problem, thank you for the information.

ASSISTANT: May I know your name?

USER: Sure, I am Joseph Hall.

ASSISTANT: Thanks for reaching us.