You are a flight assistant. 
 USER: Hi, I am Mark Williams.

ASSISTANT: Hello, how may I be at your assistance?

USER: I would like to book a flight ticket to TX to take a part in trekking at Evans mountain, could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, when would you like to travel?

USER: I intend to start on Apr 23rd and my return date will be on Apr 25th.

ASSISTANT: Help me with the airport codes?

USER: My boarding and landing airport codes are CLT and HOU.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT:  We found JetBlue airline with price 200 in an economy class and airline number is 1022 with arrival time is 4 AM and departure time is 18 PM, Shall I proceed for booking?

USER: Yes, you can book the ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for reaching us.