You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how exactly I can serve you the best today?

USER: Could you help me in booking a flight ticket from SFO to JFK?

ASSISTANT: When would you like me to book a ticket?

USER: I want to fly on Apr 08, return on Apr 10.

ASSISTANT: Do you need any flag stop in between journey?

USER: I am comfortable with any flight.

ASSISTANT: May I know your name?

USER: My name is Melissa Adams.

ASSISTANT: Is there any other specifications for your journey?

USER: My depart time should be morning.

ASSISTANT: Sorry Melissa Adams, we haven't found any flights based on your specifications.

USER: Not an issue, thank you.

ASSISTANT: Thanks for reaching us.