You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me to book a flight from JFK to IAH?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My start date is Apr 11th and return date is Apr 13th.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I am fine with any one of them.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I am flexible to travel any time.

ASSISTANT: May I know your good name please?

USER: My name is Rebecca Baker.

ASSISTANT: We found American airline with economy class and flight number is 1019 with arrival time is 23:00 hours and departure time is 20:00 hours.Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: You are welcome.